291014157 has 16 divisors (see below), whose sum is σ = 444216960. Its totient is φ = 166006272.

The previous prime is 291014131. The next prime is 291014173. The reversal of 291014157 is 751410192.

It is not a de Polignac number, because 291014157 - 2⁷ = 291014029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (291014107) 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, 769 + ... + 24137.

It is an arithmetic number, because the mean of its divisors is an integer number (27763560).

Almost surely, 2^291014157 is an apocalyptic number.

It is an amenable number.

291014157 is a deficient number, since it is larger than the sum of its proper divisors (153202803).

291014157 is a wasteful number, since it uses less digits than its factorization.

291014157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23972.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 291014157 is about 17059.1370532041. The cubic root of 291014157 is about 662.6812847668.

The spelling of 291014157 in words is "two hundred ninety-one million, fourteen thousand, one hundred fifty-seven".