404013157 has 2 divisors, whose sum is σ = 404013158. Its totient is φ = 404013156.

The previous prime is 404013133. The next prime is 404013167. The reversal of 404013157 is 751310404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 382241601 + 21771556 = 19551^2 + 4666^2 .

It is a cyclic number.

It is not a de Polignac number, because 404013157 - 2²³ = 395624549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404013107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202006578 + 202006579.

It is an arithmetic number, because the mean of its divisors is an integer number (202006579).

Almost surely, 2^404013157 is an apocalyptic number.

It is an amenable number.

404013157 is a deficient number, since it is larger than the sum of its proper divisors (1).

404013157 is an equidigital number, since it uses as much as digits as its factorization.

404013157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 404013157 is about 20100.0785321849. The cubic root of 404013157 is about 739.2622041397.

The spelling of 404013157 in words is "four hundred four million, thirteen thousand, one hundred fifty-seven".