137480705 has 4 divisors (see below), whose sum is σ = 164976852. Its totient is φ = 109984560.

The previous prime is 137480699. The next prime is 137480711. The reversal of 137480705 is 507084731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 507084731 = 7211 ⋅70321.

It is an interprime number because it is at equal distance from previous prime (137480699) and next prime (137480711).

It can be written as a sum of positive squares in 2 ways, for example, as 89718784 + 47761921 = 9472^2 + 6911^2 .

It is not a de Polignac number, because 137480705 - 2²² = 133286401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13748066 + ... + 13748075.

It is an arithmetic number, because the mean of its divisors is an integer number (41244213).

Almost surely, 2^137480705 is an apocalyptic number.

It is an amenable number.

137480705 is a deficient number, since it is larger than the sum of its proper divisors (27496147).

137480705 is an equidigital number, since it uses as much as digits as its factorization.

137480705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27496146.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 137480705 is about 11725.2166291289. The cubic root of 137480705 is about 516.1159137566.

The spelling of 137480705 in words is "one hundred thirty-seven million, four hundred eighty thousand, seven hundred five".