233144131 has 6 divisors (see below), whose sum is σ = 256265996. Its totient is φ = 211949100.

The previous prime is 233144101. The next prime is 233144147. The reversal of 233144131 is 131441332.

It is not a de Polignac number, because 233144131 - 2²¹ = 231046979 is a prime.

It is a super-2 number, since 2×233144131² = 108712371639490322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233144101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 963285 + ... + 963526.

Almost surely, 2^233144131 is an apocalyptic number.

233144131 is a deficient number, since it is larger than the sum of its proper divisors (23121865).

233144131 is a wasteful number, since it uses less digits than its factorization.

233144131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926833 (or 1926822 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 233144131 is about 15269.0579604637. The cubic root of 233144131 is about 615.4718048765.

Adding to 233144131 its reverse (131441332), we get a palindrome (364585463).

It can be divided in two parts, 2 and 33144131, that added together give a palindrome (33144133).

The spelling of 233144131 in words is "two hundred thirty-three million, one hundred forty-four thousand, one hundred thirty-one".