1338653131 has 2 divisors, whose sum is σ = 1338653132. Its totient is φ = 1338653130.

The previous prime is 1338653123. The next prime is 1338653143. The reversal of 1338653131 is 1313568331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1338653131 - 2³ = 1338653123 is a prime.

It is a super-2 number, since 2×1338653131² = 3583984410272206322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1338653231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669326565 + 669326566.

It is an arithmetic number, because the mean of its divisors is an integer number (669326566).

Almost surely, 2^1338653131 is an apocalyptic number.

1338653131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338653131 is an equidigital number, since it uses as much as digits as its factorization.

1338653131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 1338653131 is about 36587.6089817304. The cubic root of 1338653131 is about 1102.1042725632.

The spelling of 1338653131 in words is "one billion, three hundred thirty-eight million, six hundred fifty-three thousand, one hundred thirty-one".