40315069 has 2 divisors, whose sum is σ = 40315070. Its totient is φ = 40315068.

The previous prime is 40315027. The next prime is 40315073. The reversal of 40315069 is 96051304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24870169 + 15444900 = 4987^2 + 3930^2 .

It is a cyclic number.

It is not a de Polignac number, because 40315069 - 2⁹ = 40314557 is a prime.

It is a super-2 number, since 2×40315069² = 3250609576949522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40315019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20157534 + 20157535.

It is an arithmetic number, because the mean of its divisors is an integer number (20157535).

Almost surely, 2^40315069 is an apocalyptic number.

It is an amenable number.

40315069 is a deficient number, since it is larger than the sum of its proper divisors (1).

40315069 is an equidigital number, since it uses as much as digits as its factorization.

40315069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 40315069 is about 6349.4148549295. The cubic root of 40315069 is about 342.8907760243.

The spelling of 40315069 in words is "forty million, three hundred fifteen thousand, sixty-nine".