170272137 has 16 divisors (see below), whose sum is σ = 268410240. Its totient is φ = 93942912.

The previous prime is 170272133. The next prime is 170272159. The reversal of 170272137 is 731272071.

It is not a de Polignac number, because 170272137 - 2² = 170272133 is a prime.

It is not an unprimeable number, because it can be changed into a prime (170272133) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 139188 + ... + 140405.

It is an arithmetic number, because the mean of its divisors is an integer number (16775640).

Almost surely, 2^170272137 is an apocalyptic number.

It is an amenable number.

170272137 is a deficient number, since it is larger than the sum of its proper divisors (98138103).

170272137 is a wasteful number, since it uses less digits than its factorization.

170272137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279632.

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 170272137 is about 13048.8366148098. The cubic root of 170272137 is about 554.2612653351.

The spelling of 170272137 in words is "one hundred seventy million, two hundred seventy-two thousand, one hundred thirty-seven".