251232043 has 4 divisors (see below), whose sum is σ = 251517448. Its totient is φ = 250946640.

The previous prime is 251232011. The next prime is 251232053. The reversal of 251232043 is 340232152.

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 251232043 - 2⁵ = 251232011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (251232053) 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, 141378 + ... + 143143.

It is an arithmetic number, because the mean of its divisors is an integer number (62879362).

Almost surely, 2^251232043 is an apocalyptic number.

251232043 is a deficient number, since it is larger than the sum of its proper divisors (285405).

251232043 is an equidigital number, since it uses as much as digits as its factorization.

251232043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285404.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 251232043 is about 15850.3010381507. The cubic root of 251232043 is about 630.9936808849.

Adding to 251232043 its reverse (340232152), we get a palindrome (591464195).

The spelling of 251232043 in words is "two hundred fifty-one million, two hundred thirty-two thousand, forty-three".