251341410242 has 16 divisors (see below), whose sum is σ = 406022499960. Its totient is φ = 116001027072.

The previous prime is 251341410211. The next prime is 251341410247. The reversal of 251341410242 is 242014143152.

It is a happy number.

251341410242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 211049278801 + 40292131441 = 459401^2 + 200729^2 .

It is not an unprimeable number, because it can be changed into a prime (251341410247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1418984 + ... + 1586252.

Almost surely, 2^251341410242 is an apocalyptic number.

251341410242 is a deficient number, since it is larger than the sum of its proper divisors (154681089718).

251341410242 is a wasteful number, since it uses less digits than its factorization.

251341410242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225077.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 251341410242 its reverse (242014143152), we get a palindrome (493355553394).

The spelling of 251341410242 in words is "two hundred fifty-one billion, three hundred forty-one million, four hundred ten thousand, two hundred forty-two".