137172502 has 8 divisors (see below), whose sum is σ = 207682056. Its totient is φ = 67945152.

The previous prime is 137172499. The next prime is 137172583. The reversal of 137172502 is 205271731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 320283 + ... + 320710.

It is an arithmetic number, because the mean of its divisors is an integer number (25960257).

Almost surely, 2^137172502 is an apocalyptic number.

137172502 is a deficient number, since it is larger than the sum of its proper divisors (70509554).

137172502 is a wasteful number, since it uses less digits than its factorization.

137172502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641102.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 137172502 is about 11712.0665127893. The cubic root of 137172502 is about 515.7299505353.

The spelling of 137172502 in words is "one hundred thirty-seven million, one hundred seventy-two thousand, five hundred two".