40537499 has 2 divisors, whose sum is σ = 40537500. Its totient is φ = 40537498.

The previous prime is 40537487. The next prime is 40537501. The reversal of 40537499 is 99473504.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40537499 is a prime.

It is a super-3 number, since 3×40537499³ (a number of 24 digits) contains 333 as substring.

Together with 40537501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40537439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20268749 + 20268750.

It is an arithmetic number, because the mean of its divisors is an integer number (20268750).

Almost surely, 2^40537499 is an apocalyptic number.

40537499 is a deficient number, since it is larger than the sum of its proper divisors (1).

40537499 is an equidigital number, since it uses as much as digits as its factorization.

40537499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 40537499 is about 6366.9065487095. The cubic root of 40537499 is about 343.5202293040.

The spelling of 40537499 in words is "forty million, five hundred thirty-seven thousand, four hundred ninety-nine".