137761956 has 18 divisors (see below), whose sum is σ = 348231702. Its totient is φ = 45920640.

The previous prime is 137761907. The next prime is 137761957. The reversal of 137761956 is 659167731.

It can be written as a sum of positive squares in only one way, i.e., 88059456 + 49702500 = 9384^2 + 7050^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (137761957) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1913325 + ... + 1913396.

Almost surely, 2^137761956 is an apocalyptic number.

It is an amenable number.

137761956 is an abundant number, since it is smaller than the sum of its proper divisors (210469746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137761956 is a wasteful number, since it uses less digits than its factorization.

137761956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3826731 (or 3826726 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 137761956 is about 11737.2039259783. The cubic root of 137761956 is about 516.4676218830.

The spelling of 137761956 in words is "one hundred thirty-seven million, seven hundred sixty-one thousand, nine hundred fifty-six".