402041131 has 4 divisors (see below), whose sum is σ = 402243064. Its totient is φ = 401839200.

The previous prime is 402041117. The next prime is 402041147. The reversal of 402041131 is 131140204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 402041131 - 2²¹ = 399943979 is a prime.

It is a super-2 number, since 2×402041131² = 323274142031518322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402044131) 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, 97950 + ... + 101971.

It is an arithmetic number, because the mean of its divisors is an integer number (100560766).

Almost surely, 2^402041131 is an apocalyptic number.

402041131 is a deficient number, since it is larger than the sum of its proper divisors (201933).

402041131 is a wasteful number, since it uses less digits than its factorization.

402041131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201932.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 402041131 is about 20050.9633434406. The cubic root of 402041131 is about 738.0574391684.

Adding to 402041131 its reverse (131140204), we get a palindrome (533181335).

The spelling of 402041131 in words is "four hundred two million, forty-one thousand, one hundred thirty-one".