1401768131 has 2 divisors, whose sum is σ = 1401768132. Its totient is φ = 1401768130.

The previous prime is 1401768103. The next prime is 1401768163. The reversal of 1401768131 is 1318671041.

It is an a-pointer prime, because the next prime (1401768163) can be obtained adding 1401768131 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1401768131 - 2²⁶ = 1334659267 is a prime.

It is a super-2 number, since 2×1401768131² = 3929907786174466322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1401768101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700884065 + 700884066.

It is an arithmetic number, because the mean of its divisors is an integer number (700884066).

Almost surely, 2^1401768131 is an apocalyptic number.

1401768131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401768131 is an equidigital number, since it uses as much as digits as its factorization.

1401768131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 1401768131 is about 37440.1940566552. The cubic root of 1401768131 is about 1119.1596936245.

The spelling of 1401768131 in words is "one billion, four hundred one million, seven hundred sixty-eight thousand, one hundred thirty-one".