401553131 has 16 divisors (see below), whose sum is σ = 468066816. Its totient is φ = 337395456.

The previous prime is 401553127. The next prime is 401553143. The reversal of 401553131 is 131355104.

It is a cyclic number.

It is not a de Polignac number, because 401553131 - 2² = 401553127 is a prime.

It is a super-2 number, since 2×401553131² = 322489834031806322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401553097 and 401553106.

It is not an unprimeable number, because it can be changed into a prime (401553161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69890 + ... + 75416.

It is an arithmetic number, because the mean of its divisors is an integer number (29254176).

Almost surely, 2^401553131 is an apocalyptic number.

401553131 is a deficient number, since it is larger than the sum of its proper divisors (66513685).

401553131 is a wasteful number, since it uses less digits than its factorization.

401553131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5738.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 401553131 is about 20038.7906571230. The cubic root of 401553131 is about 737.7586987102.

The spelling of 401553131 in words is "four hundred one million, five hundred fifty-three thousand, one hundred thirty-one".