9040878131 has 2 divisors, whose sum is σ = 9040878132. Its totient is φ = 9040878130.

The previous prime is 9040878047. The next prime is 9040878163. The reversal of 9040878131 is 1318780409.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9040878131 is a prime.

It is a super-2 number, since 2×9040878131² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (9040878031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4520439065 + 4520439066.

It is an arithmetic number, because the mean of its divisors is an integer number (4520439066).

Almost surely, 2^9040878131 is an apocalyptic number.

9040878131 is a deficient number, since it is larger than the sum of its proper divisors (1).

9040878131 is an equidigital number, since it uses as much as digits as its factorization.

9040878131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 9040878131 is about 95083.5323860026. The cubic root of 9040878131 is about 2083.2283240568.

The spelling of 9040878131 in words is "nine billion, forty million, eight hundred seventy-eight thousand, one hundred thirty-one".