1631125164 has 24 divisors (see below), whose sum is σ = 3806611648. Its totient is φ = 543615120.

The previous prime is 1631125157. The next prime is 1631125169. The reversal of 1631125164 is 4615211361.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1631125169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133179 + ... + 144909.

Almost surely, 2^1631125164 is an apocalyptic number.

It is an amenable number.

1631125164 is an abundant number, since it is smaller than the sum of its proper divisors (2175486484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1631125164 is a wasteful number, since it uses less digits than its factorization.

1631125164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23325 (or 23323 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 1631125164 is about 40387.1905930581. The cubic root of 1631125164 is about 1177.1426518280.

The spelling of 1631125164 in words is "one billion, six hundred thirty-one million, one hundred twenty-five thousand, one hundred sixty-four".