1631465132 has 12 divisors (see below), whose sum is σ = 3114615336. Its totient is φ = 741575040.

The previous prime is 1631465123. The next prime is 1631465137. The reversal of 1631465132 is 2315641361.

It is not an unprimeable number, because it can be changed into a prime (1631465137) 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, 18539333 + ... + 18539420.

It is an arithmetic number, because the mean of its divisors is an integer number (259551278).

Almost surely, 2^1631465132 is an apocalyptic number.

It is an amenable number.

1631465132 is a deficient number, since it is larger than the sum of its proper divisors (1483150204).

1631465132 is a wasteful number, since it uses less digits than its factorization.

1631465132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37078768 (or 37078766 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 1631465132 is about 40391.3992330050. The cubic root of 1631465132 is about 1177.2244283101.

The spelling of 1631465132 in words is "one billion, six hundred thirty-one million, four hundred sixty-five thousand, one hundred thirty-two".