40115297 has 2 divisors, whose sum is σ = 40115298. Its totient is φ = 40115296.

The previous prime is 40115293. The next prime is 40115303. The reversal of 40115297 is 79251104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26306641 + 13808656 = 5129^2 + 3716^2 .

It is a cyclic number.

It is not a de Polignac number, because 40115297 - 2² = 40115293 is a prime.

It is not a weakly prime, because it can be changed into another prime (40115293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20057648 + 20057649.

It is an arithmetic number, because the mean of its divisors is an integer number (20057649).

Almost surely, 2^40115297 is an apocalyptic number.

It is an amenable number.

40115297 is a deficient number, since it is larger than the sum of its proper divisors (1).

40115297 is an equidigital number, since it uses as much as digits as its factorization.

40115297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 40115297 is about 6333.6637896245. The cubic root of 40115297 is about 342.3234659540.

The spelling of 40115297 in words is "forty million, one hundred fifteen thousand, two hundred ninety-seven".