1372705739 has 2 divisors, whose sum is σ = 1372705740. Its totient is φ = 1372705738.

The previous prime is 1372705721. The next prime is 1372705751. The reversal of 1372705739 is 9375072731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1372705739 - 2²⁴ = 1355928523 is a prime.

It is a super-2 number, since 2×1372705739² = 3768642091767072242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1372705739.

It is not a weakly prime, because it can be changed into another prime (1372702739) 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, 686352869 + 686352870.

It is an arithmetic number, because the mean of its divisors is an integer number (686352870).

Almost surely, 2^1372705739 is an apocalyptic number.

1372705739 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372705739 is an equidigital number, since it uses as much as digits as its factorization.

1372705739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 277830, while the sum is 44.

The square root of 1372705739 is about 37050.0437111753. The cubic root of 1372705739 is about 1111.3712293706.

The spelling of 1372705739 in words is "one billion, three hundred seventy-two million, seven hundred five thousand, seven hundred thirty-nine".