1461985031 has 6 divisors (see below), whose sum is σ = 1583096400. Its totient is φ = 1349524488.

The previous prime is 1461985009. The next prime is 1461985037. The reversal of 1461985031 is 1305891641.

It is not a de Polignac number, because 1461985031 - 2²² = 1457790727 is a prime.

It is a super-2 number, since 2×1461985031² = 4274800461736141922, 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 (1461985037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4325231 + ... + 4325568.

It is an arithmetic number, because the mean of its divisors is an integer number (263849400).

Almost surely, 2^1461985031 is an apocalyptic number.

1461985031 is a deficient number, since it is larger than the sum of its proper divisors (121111369).

1461985031 is an equidigital number, since it uses as much as digits as its factorization.

1461985031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8650825 (or 8650812 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 1461985031 is about 38235.9128438174. The cubic root of 1461985031 is about 1134.9610965597.

The spelling of 1461985031 in words is "one billion, four hundred sixty-one million, nine hundred eighty-five thousand, thirty-one".