137455249 has 4 divisors (see below), whose sum is σ = 138999780. Its totient is φ = 135910720.

The previous prime is 137455231. The next prime is 137455267. The reversal of 137455249 is 942554731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 942554731 = 457 ⋅2062483.

It is an interprime number because it is at equal distance from previous prime (137455231) and next prime (137455267).

It can be written as a sum of positive squares in 2 ways, for example, as 65934400 + 71520849 = 8120^2 + 8457^2 .

It is a cyclic number.

It is not a de Polignac number, because 137455249 - 2¹⁹ = 136930961 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137455049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772132 + ... + 772309.

It is an arithmetic number, because the mean of its divisors is an integer number (34749945).

Almost surely, 2^137455249 is an apocalyptic number.

It is an amenable number.

137455249 is a deficient number, since it is larger than the sum of its proper divisors (1544531).

137455249 is an equidigital number, since it uses as much as digits as its factorization.

137455249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544530.

The product of its digits is 151200, while the sum is 40.

The square root of 137455249 is about 11724.1310552211. The cubic root of 137455249 is about 516.0840570252.

The spelling of 137455249 in words is "one hundred thirty-seven million, four hundred fifty-five thousand, two hundred forty-nine".