1631316356 has 6 divisors (see below), whose sum is σ = 2854803630. Its totient is φ = 815658176.

The previous prime is 1631316343. The next prime is 1631316361. The reversal of 1631316356 is 6536131361.

It can be written as a sum of positive squares in only one way, i.e., 1630867456 + 448900 = 40384^2 + 670^2 .

It is a super-2 number, since 2×1631316356² = 5322386106706237472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203914541 + ... + 203914548.

It is an arithmetic number, because the mean of its divisors is an integer number (475800605).

Almost surely, 2^1631316356 is an apocalyptic number.

It is an amenable number.

1631316356 is a deficient number, since it is larger than the sum of its proper divisors (1223487274).

1631316356 is a wasteful number, since it uses less digits than its factorization.

1631316356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407829093 (or 407829091 counting only the distinct ones).

The product of its digits is 29160, while the sum is 35.

The square root of 1631316356 is about 40389.5575118124. The cubic root of 1631316356 is about 1177.1886428756.

The spelling of 1631316356 in words is "one billion, six hundred thirty-one million, three hundred sixteen thousand, three hundred fifty-six".