137171956 has 6 divisors (see below), whose sum is σ = 240050930. Its totient is φ = 68585976.

The previous prime is 137171953. The next prime is 137171971. The reversal of 137171956 is 659171731.

It can be written as a sum of positive squares in only one way, i.e., 136515856 + 656100 = 11684^2 + 810^2 .

It is a super-2 number, since 2×137171956² = 37632291025731872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137171953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17146491 + ... + 17146498.

Almost surely, 2^137171956 is an apocalyptic number.

It is an amenable number.

137171956 is a deficient number, since it is larger than the sum of its proper divisors (102878974).

137171956 is a wasteful number, since it uses less digits than its factorization.

137171956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34292993 (or 34292991 counting only the distinct ones).

The product of its digits is 39690, while the sum is 40.

The square root of 137171956 is about 11712.0432034722. The cubic root of 137171956 is about 515.7292662656.

The spelling of 137171956 in words is "one hundred thirty-seven million, one hundred seventy-one thousand, nine hundred fifty-six".