1372822961 has 2 divisors, whose sum is σ = 1372822962. Its totient is φ = 1372822960.

The previous prime is 1372822949. The next prime is 1372822987. The reversal of 1372822961 is 1692282731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1114224400 + 258598561 = 33380^2 + 16081^2 .

It is a cyclic number.

It is not a de Polignac number, because 1372822961 - 2¹⁰ = 1372821937 is a prime.

It is a super-4 number, since 4×1372822961⁴ (a number of 38 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (1372822991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686411480 + 686411481.

It is an arithmetic number, because the mean of its divisors is an integer number (686411481).

Almost surely, 2^1372822961 is an apocalyptic number.

It is an amenable number.

1372822961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372822961 is an equidigital number, since it uses as much as digits as its factorization.

1372822961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 41.

The square root of 1372822961 is about 37051.6256188578. The cubic root of 1372822961 is about 1111.4028635965.

The spelling of 1372822961 in words is "one billion, three hundred seventy-two million, eight hundred twenty-two thousand, nine hundred sixty-one".