137172434 has 16 divisors (see below), whose sum is σ = 236375808. Its totient is φ = 58482432.

The previous prime is 137172433. The next prime is 137172481. The reversal of 137172434 is 434271731.

It is a self number, because there is not a number n which added to its sum of digits gives 137172434.

It is not an unprimeable number, because it can be changed into a prime (137172433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22682 + ... + 28085.

It is an arithmetic number, because the mean of its divisors is an integer number (14773488).

Almost surely, 2^137172434 is an apocalyptic number.

137172434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

137172434 is a deficient number, since it is larger than the sum of its proper divisors (99203374).

137172434 is a wasteful number, since it uses less digits than its factorization.

137172434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50969.

The product of its digits is 14112, while the sum is 32.

The square root of 137172434 is about 11712.0636097999. The cubic root of 137172434 is about 515.7298653150.

The spelling of 137172434 in words is "one hundred thirty-seven million, one hundred seventy-two thousand, four hundred thirty-four".