40124957 has 2 divisors, whose sum is σ = 40124958. Its totient is φ = 40124956.

The previous prime is 40124921. The next prime is 40124963. The reversal of 40124957 is 75942104.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38019556 + 2105401 = 6166^2 + 1451^2 .

It is a cyclic number.

It is not a de Polignac number, because 40124957 - 2⁸ = 40124701 is a prime.

It is a super-2 number, since 2×40124957² = 3220024348503698, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40154957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20062478 + 20062479.

It is an arithmetic number, because the mean of its divisors is an integer number (20062479).

Almost surely, 2^40124957 is an apocalyptic number.

It is an amenable number.

40124957 is a deficient number, since it is larger than the sum of its proper divisors (1).

40124957 is an equidigital number, since it uses as much as digits as its factorization.

40124957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 40124957 is about 6334.4263355098. The cubic root of 40124957 is about 342.3509415849.

The spelling of 40124957 in words is "forty million, one hundred twenty-four thousand, nine hundred fifty-seven".