400132157 has 4 divisors (see below), whose sum is σ = 409437600. Its totient is φ = 390826716.

The previous prime is 400132151. The next prime is 400132177. The reversal of 400132157 is 751231004.

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 400132157 - 2¹⁴ = 400115773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400132151) 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, 4652657 + ... + 4652742.

It is an arithmetic number, because the mean of its divisors is an integer number (102359400).

Almost surely, 2^400132157 is an apocalyptic number.

It is an amenable number.

400132157 is a deficient number, since it is larger than the sum of its proper divisors (9305443).

400132157 is an equidigital number, since it uses as much as digits as its factorization.

400132157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9305442.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 400132157 is about 20003.3036521471. The cubic root of 400132157 is about 736.8874358849.

The spelling of 400132157 in words is "four hundred million, one hundred thirty-two thousand, one hundred fifty-seven".