901497831 has 16 divisors (see below), whose sum is σ = 1301620320. Its totient is φ = 551698560.

The previous prime is 901497827. The next prime is 901497869. The reversal of 901497831 is 138794109.

It is a happy number.

It is not a de Polignac number, because 901497831 - 2² = 901497827 is a prime.

It is a super-2 number, since 2×901497831² = 1625396678595409122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901497031) 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, 56796 + ... + 70913.

It is an arithmetic number, because the mean of its divisors is an integer number (81351270).

Almost surely, 2^901497831 is an apocalyptic number.

901497831 is a deficient number, since it is larger than the sum of its proper divisors (400122489).

901497831 is a wasteful number, since it uses less digits than its factorization.

901497831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127906.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 901497831 is about 30024.9534720705. The cubic root of 901497831 is about 966.0246951323.

The spelling of 901497831 in words is "nine hundred one million, four hundred ninety-seven thousand, eight hundred thirty-one".