251423141 has 8 divisors (see below), whose sum is σ = 255239424. Its totient is φ = 247614640.

The previous prime is 251423101. The next prime is 251423147. The reversal of 251423141 is 141324152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-251423141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251423147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111275 + ... + 113511.

It is an arithmetic number, because the mean of its divisors is an integer number (31904928).

Almost surely, 2^251423141 is an apocalyptic number.

It is an amenable number.

251423141 is a deficient number, since it is larger than the sum of its proper divisors (3816283).

251423141 is a wasteful number, since it uses less digits than its factorization.

251423141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3891.

The product of its digits is 960, while the sum is 23.

The square root of 251423141 is about 15856.3281058384. The cubic root of 251423141 is about 631.1536274011.

Adding to 251423141 its reverse (141324152), we get a palindrome (392747293).

The spelling of 251423141 in words is "two hundred fifty-one million, four hundred twenty-three thousand, one hundred forty-one".