234402131 has 4 divisors (see below), whose sum is σ = 244593552. Its totient is φ = 224210712.

The previous prime is 234402127. The next prime is 234402139. The reversal of 234402131 is 131204432.

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 234402131 - 2² = 234402127 is a prime.

It is a super-2 number, since 2×234402131² = 109888718034682322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234402139) 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, 5095676 + ... + 5095721.

It is an arithmetic number, because the mean of its divisors is an integer number (61148388).

Almost surely, 2^234402131 is an apocalyptic number.

234402131 is a deficient number, since it is larger than the sum of its proper divisors (10191421).

234402131 is a wasteful number, since it uses less digits than its factorization.

234402131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10191420.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 234402131 is about 15310.1969615025. The cubic root of 234402131 is about 616.5768081713.

Adding to 234402131 its reverse (131204432), we get a palindrome (365606563).

The spelling of 234402131 in words is "two hundred thirty-four million, four hundred two thousand, one hundred thirty-one".