151891265 has 16 divisors (see below), whose sum is σ = 191068416. Its totient is φ = 115785600.

The previous prime is 151891261. The next prime is 151891273. The reversal of 151891265 is 562198151.

It is not a de Polignac number, because 151891265 - 2² = 151891261 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151891261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200 + ... + 17430.

It is an arithmetic number, because the mean of its divisors is an integer number (11941776).

Almost surely, 2^151891265 is an apocalyptic number.

It is an amenable number.

151891265 is a deficient number, since it is larger than the sum of its proper divisors (39177151).

151891265 is a wasteful number, since it uses less digits than its factorization.

151891265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17320.

The product of its digits is 21600, while the sum is 38.

The square root of 151891265 is about 12324.4174304508. The cubic root of 151891265 is about 533.5530412058.

The spelling of 151891265 in words is "one hundred fifty-one million, eight hundred ninety-one thousand, two hundred sixty-five".