1461947531 has 6 divisors (see below), whose sum is σ = 1606934196. Its totient is φ = 1329043100.

The previous prime is 1461947483. The next prime is 1461947561. The reversal of 1461947531 is 1357491641.

It is not a de Polignac number, because 1461947531 - 2⁶ = 1461947467 is a prime.

It is a super-2 number, since 2×1461947531² = 4274581166793991922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1461947561) 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, 6040985 + ... + 6041226.

It is an arithmetic number, because the mean of its divisors is an integer number (267822366).

Almost surely, 2^1461947531 is an apocalyptic number.

1461947531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1461947531 is a deficient number, since it is larger than the sum of its proper divisors (144986665).

1461947531 is a wasteful number, since it uses less digits than its factorization.

1461947531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12082233 (or 12082222 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 1461947531 is about 38235.4224639927. The cubic root of 1461947531 is about 1134.9513925376.

The spelling of 1461947531 in words is "one billion, four hundred sixty-one million, nine hundred forty-seven thousand, five hundred thirty-one".