401875157 has 4 divisors (see below), whose sum is σ = 401999136. Its totient is φ = 401751180.

The previous prime is 401875141. The next prime is 401875163. The reversal of 401875157 is 751578104.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 401875157 - 2⁴ = 401875141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401875157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401875057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56993 + ... + 63654.

It is an arithmetic number, because the mean of its divisors is an integer number (100499784).

Almost surely, 2^401875157 is an apocalyptic number.

It is an amenable number.

401875157 is a deficient number, since it is larger than the sum of its proper divisors (123979).

401875157 is a wasteful number, since it uses less digits than its factorization.

401875157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123978.

The product of its (nonzero) digits is 39200, while the sum is 38.

The square root of 401875157 is about 20046.8241125621. The cubic root of 401875157 is about 737.9558614965.

The spelling of 401875157 in words is "four hundred one million, eight hundred seventy-five thousand, one hundred fifty-seven".