40115459 has 2 divisors, whose sum is σ = 40115460. Its totient is φ = 40115458.

The previous prime is 40115447. The next prime is 40115501. The reversal of 40115459 is 95451104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40115459 - 2⁴ = 40115443 is a prime.

It is not a weakly prime, because it can be changed into another prime (40117459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20057729 + 20057730.

It is an arithmetic number, because the mean of its divisors is an integer number (20057730).

Almost surely, 2^40115459 is an apocalyptic number.

40115459 is a deficient number, since it is larger than the sum of its proper divisors (1).

40115459 is an equidigital number, since it uses as much as digits as its factorization.

40115459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 40115459 is about 6333.6765784179. The cubic root of 40115459 is about 342.3239267619.

The spelling of 40115459 in words is "forty million, one hundred fifteen thousand, four hundred fifty-nine".