1031139892 has 48 divisors (see below), whose sum is σ = 1903587840. Its totient is φ = 488049408.

The previous prime is 1031139883. The next prime is 1031139917. The reversal of 1031139892 is 2989311301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2226853 + ... + 2227315.

It is an arithmetic number, because the mean of its divisors is an integer number (39658080).

Almost surely, 2^1031139892 is an apocalyptic number.

It is an amenable number.

1031139892 is a deficient number, since it is larger than the sum of its proper divisors (872447948).

1031139892 is a wasteful number, since it uses less digits than its factorization.

1031139892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 1031139892 is about 32111.3670216638. The cubic root of 1031139892 is about 1010.2740464732.

The spelling of 1031139892 in words is "one billion, thirty-one million, one hundred thirty-nine thousand, eight hundred ninety-two".