137767145 has 4 divisors (see below), whose sum is σ = 165320580. Its totient is φ = 110213712.

The previous prime is 137767127. The next prime is 137767153. The reversal of 137767145 is 541767731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541767731 = 47 ⋅11526973.

It can be written as a sum of positive squares in 2 ways, for example, as 14645929 + 123121216 = 3827^2 + 11096^2 .

It is a cyclic number.

It is not a de Polignac number, because 137767145 - 2¹² = 137763049 is a prime.

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, 13776710 + ... + 13776719.

It is an arithmetic number, because the mean of its divisors is an integer number (41330145).

Almost surely, 2^137767145 is an apocalyptic number.

It is an amenable number.

137767145 is a deficient number, since it is larger than the sum of its proper divisors (27553435).

137767145 is an equidigital number, since it uses as much as digits as its factorization.

137767145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27553434.

The product of its digits is 123480, while the sum is 41.

The square root of 137767145 is about 11737.4249731361. The cubic root of 137767145 is about 516.4741062974.

The spelling of 137767145 in words is "one hundred thirty-seven million, seven hundred sixty-seven thousand, one hundred forty-five".