1372666531 has 2 divisors, whose sum is σ = 1372666532. Its totient is φ = 1372666530.

The previous prime is 1372666507. The next prime is 1372666573. The reversal of 1372666531 is 1356662731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1372666531 - 2⁵ = 1372666499 is a prime.

It is a super-2 number, since 2×1372666531² = 3768426810655147922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1372666931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686333265 + 686333266.

It is an arithmetic number, because the mean of its divisors is an integer number (686333266).

Almost surely, 2^1372666531 is an apocalyptic number.

1372666531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372666531 is an equidigital number, since it uses as much as digits as its factorization.

1372666531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 40.

The square root of 1372666531 is about 37049.5145852142. The cubic root of 1372666531 is about 1111.3606480647.

The spelling of 1372666531 in words is "one billion, three hundred seventy-two million, six hundred sixty-six thousand, five hundred thirty-one".