1272182651 has 2 divisors, whose sum is σ = 1272182652. Its totient is φ = 1272182650.

The previous prime is 1272182623. The next prime is 1272182663. The reversal of 1272182651 is 1562812721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1272182651 - 2²² = 1267988347 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1272182621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636091325 + 636091326.

It is an arithmetic number, because the mean of its divisors is an integer number (636091326).

Almost surely, 2^1272182651 is an apocalyptic number.

1272182651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272182651 is an equidigital number, since it uses as much as digits as its factorization.

1272182651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 35.

The square root of 1272182651 is about 35667.6695482057. The cubic root of 1272182651 is about 1083.5521617329.

The spelling of 1272182651 in words is "one billion, two hundred seventy-two million, one hundred eighty-two thousand, six hundred fifty-one".