1081915937 has 2 divisors, whose sum is σ = 1081915938. Its totient is φ = 1081915936.

The previous prime is 1081915931. The next prime is 1081915949. The reversal of 1081915937 is 7395191801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1068047761 + 13868176 = 32681^2 + 3724^2 .

It is a cyclic number.

It is not a de Polignac number, because 1081915937 - 2¹⁶ = 1081850401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1081915931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540957968 + 540957969.

It is an arithmetic number, because the mean of its divisors is an integer number (540957969).

Almost surely, 2^1081915937 is an apocalyptic number.

It is an amenable number.

1081915937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081915937 is an equidigital number, since it uses as much as digits as its factorization.

1081915937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 44.

The square root of 1081915937 is about 32892.4905867586. The cubic root of 1081915937 is about 1026.5919144403.

The spelling of 1081915937 in words is "one billion, eighty-one million, nine hundred fifteen thousand, nine hundred thirty-seven".