233142731 has 2 divisors, whose sum is σ = 233142732. Its totient is φ = 233142730.

The previous prime is 233142727. The next prime is 233142751. The reversal of 233142731 is 137241332.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 233142731 - 2² = 233142727 is a prime.

It is a super-2 number, since 2×233142731² = 108711066036276722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 233142731.

It is not a weakly prime, because it can be changed into another prime (233142751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116571365 + 116571366.

It is an arithmetic number, because the mean of its divisors is an integer number (116571366).

Almost surely, 2^233142731 is an apocalyptic number.

233142731 is a deficient number, since it is larger than the sum of its proper divisors (1).

233142731 is an equidigital number, since it uses as much as digits as its factorization.

233142731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 26.

The square root of 233142731 is about 15269.0121160473. The cubic root of 233142731 is about 615.4705729315.

The spelling of 233142731 in words is "two hundred thirty-three million, one hundred forty-two thousand, seven hundred thirty-one".