1249970031 has 12 divisors (see below), whose sum is σ = 1805828752. Its totient is φ = 833167296.

The previous prime is 1249970027. The next prime is 1249970039. The reversal of 1249970031 is 1300799421.

It is not a de Polignac number, because 1249970031 - 2² = 1249970027 is a prime.

It is a super-2 number, since 2×1249970031² = 3124850156796281922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249970039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74535 + ... + 89751.

Almost surely, 2^1249970031 is an apocalyptic number.

1249970031 is a deficient number, since it is larger than the sum of its proper divisors (555858721).

1249970031 is a wasteful number, since it uses less digits than its factorization.

1249970031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24350 (or 24347 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1249970031 is about 35354.9152311245. The cubic root of 1249970031 is about 1077.2087361134.

The spelling of 1249970031 in words is "one billion, two hundred forty-nine million, nine hundred seventy thousand, thirty-one".