1137931709 has 2 divisors, whose sum is σ = 1137931710. Its totient is φ = 1137931708.

The previous prime is 1137931687. The next prime is 1137931723. The reversal of 1137931709 is 9071397311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 711715684 + 426216025 = 26678^2 + 20645^2 .

It is a cyclic number.

It is not a de Polignac number, because 1137931709 - 2²⁸ = 869496253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1137931799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568965854 + 568965855.

It is an arithmetic number, because the mean of its divisors is an integer number (568965855).

Almost surely, 2^1137931709 is an apocalyptic number.

It is an amenable number.

1137931709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1137931709 is an equidigital number, since it uses as much as digits as its factorization.

1137931709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35721, while the sum is 41.

The square root of 1137931709 is about 33733.2433809736. The cubic root of 1137931709 is about 1044.0117819044.

The spelling of 1137931709 in words is "one billion, one hundred thirty-seven million, nine hundred thirty-one thousand, seven hundred nine".