40852129 has 2 divisors, whose sum is σ = 40852130. Its totient is φ = 40852128.

The previous prime is 40852121. The next prime is 40852171. The reversal of 40852129 is 92125804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40297104 + 555025 = 6348^2 + 745^2 .

It is a cyclic number.

It is not a de Polignac number, because 40852129 - 2³ = 40852121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40852129.

It is not a weakly prime, because it can be changed into another prime (40852121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20426064 + 20426065.

It is an arithmetic number, because the mean of its divisors is an integer number (20426065).

Almost surely, 2^40852129 is an apocalyptic number.

It is an amenable number.

40852129 is a deficient number, since it is larger than the sum of its proper divisors (1).

40852129 is an equidigital number, since it uses as much as digits as its factorization.

40852129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 40852129 is about 6391.5670222567. The cubic root of 40852129 is about 344.4066788710.

The spelling of 40852129 in words is "forty million, eight hundred fifty-two thousand, one hundred twenty-nine".