40902529 has 2 divisors, whose sum is σ = 40902530. Its totient is φ = 40902528.

The previous prime is 40902469. The next prime is 40902539. The reversal of 40902529 is 92520904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40449600 + 452929 = 6360^2 + 673^2 .

It is a cyclic number.

It is not a de Polignac number, because 40902529 - 2¹⁹ = 40378241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40902529.

It is not a weakly prime, because it can be changed into another prime (40902539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20451264 + 20451265.

It is an arithmetic number, because the mean of its divisors is an integer number (20451265).

Almost surely, 2^40902529 is an apocalyptic number.

It is an amenable number.

40902529 is a deficient number, since it is larger than the sum of its proper divisors (1).

40902529 is an equidigital number, since it uses as much as digits as its factorization.

40902529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 40902529 is about 6395.5085020661. The cubic root of 40902529 is about 344.5482542193.

The spelling of 40902529 in words is "forty million, nine hundred two thousand, five hundred twenty-nine".