251413114143 has 4 divisors (see below), whose sum is σ = 335217485528. Its totient is φ = 167608742760.

The previous prime is 251413114129. The next prime is 251413114151. The reversal of 251413114143 is 341411314152.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 251413114143 - 2⁹ = 251413113631 is a prime.

It is a super-2 number, since 2×251413114143² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 251413114143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251413114193) 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, 41902185688 + ... + 41902185693.

It is an arithmetic number, because the mean of its divisors is an integer number (83804371382).

Almost surely, 2^251413114143 is an apocalyptic number.

251413114143 is a deficient number, since it is larger than the sum of its proper divisors (83804371385).

251413114143 is an equidigital number, since it uses as much as digits as its factorization.

251413114143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83804371384.

The product of its digits is 5760, while the sum is 30.

Adding to 251413114143 its reverse (341411314152), we get a palindrome (592824428295).

Subtracting 251413114143 from its reverse (341411314152), we obtain a square (89998200009 = 299997²).

The spelling of 251413114143 in words is "two hundred fifty-one billion, four hundred thirteen million, one hundred fourteen thousand, one hundred forty-three".