40315147 has 2 divisors, whose sum is σ = 40315148. Its totient is φ = 40315146.

The previous prime is 40315141. The next prime is 40315151. The reversal of 40315147 is 74151304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40315147 - 2⁷ = 40315019 is a prime.

It is a super-2 number, since 2×40315147² = 3250622155263218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40315141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20157573 + 20157574.

It is an arithmetic number, because the mean of its divisors is an integer number (20157574).

Almost surely, 2^40315147 is an apocalyptic number.

40315147 is a deficient number, since it is larger than the sum of its proper divisors (1).

40315147 is an equidigital number, since it uses as much as digits as its factorization.

40315147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 40315147 is about 6349.4209972249. The cubic root of 40315147 is about 342.8909971614.

The spelling of 40315147 in words is "forty million, three hundred fifteen thousand, one hundred forty-seven".