1631260564 has 12 divisors (see below), whose sum is σ = 2855021344. Its totient is φ = 815540184.

The previous prime is 1631260559. The next prime is 1631260567. The reversal of 1631260564 is 4650621361.

It is a super-3 number, since 3×1631260564³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1631260567) 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, 33937 + ... + 66439.

Almost surely, 2^1631260564 is an apocalyptic number.

It is an amenable number.

1631260564 is a deficient number, since it is larger than the sum of its proper divisors (1223760780).

1631260564 is a wasteful number, since it uses less digits than its factorization.

1631260564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45054 (or 45052 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 1631260564 is about 40388.8668323339. The cubic root of 1631260564 is about 1177.1752225362.

The spelling of 1631260564 in words is "one billion, six hundred thirty-one million, two hundred sixty thousand, five hundred sixty-four".