3900901231 has 4 divisors (see below), whose sum is σ = 4006331032. Its totient is φ = 3795471432.

The previous prime is 3900901211. The next prime is 3900901237. The reversal of 3900901231 is 1321090093.

3900901231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3900901231 - 2¹¹ = 3900899183 is a prime.

It is a super-2 number, since 2×3900901231² = 30434060828034630722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3900901231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3900901237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52714845 + ... + 52714918.

It is an arithmetic number, because the mean of its divisors is an integer number (1001582758).

Almost surely, 2^3900901231 is an apocalyptic number.

3900901231 is a deficient number, since it is larger than the sum of its proper divisors (105429801).

3900901231 is a wasteful number, since it uses less digits than its factorization.

3900901231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105429800.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 3900901231 is about 62457.1951899859. The cubic root of 3900901231 is about 1574.1821545149.

The spelling of 3900901231 in words is "three billion, nine hundred million, nine hundred one thousand, two hundred thirty-one".