901002931 has 4 divisors (see below), whose sum is σ = 911858472. Its totient is φ = 890147392.

The previous prime is 901002923. The next prime is 901002953. The reversal of 901002931 is 139200109.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 901002931 - 2³ = 901002923 is a prime.

It is a super-2 number, since 2×901002931² = 1623612563341181522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 901002896 and 901002905.

It is not an unprimeable number, because it can be changed into a prime (901002911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5427646 + ... + 5427811.

It is an arithmetic number, because the mean of its divisors is an integer number (227964618).

Almost surely, 2^901002931 is an apocalyptic number.

901002931 is a deficient number, since it is larger than the sum of its proper divisors (10855541).

901002931 is a wasteful number, since it uses less digits than its factorization.

901002931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10855540.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 901002931 is about 30016.7108624513. The cubic root of 901002931 is about 965.8478882236.

The spelling of 901002931 in words is "nine hundred one million, two thousand, nine hundred thirty-one".