251140545341 has 12 divisors (see below), whose sum is σ = 302919030432. Its totient is φ = 203933673864.

The previous prime is 251140545323. The next prime is 251140545371. The reversal of 251140545341 is 143545041152.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-251140545341 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 (251140545371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49688915 + ... + 49693968.

It is an arithmetic number, because the mean of its divisors is an integer number (25243252536).

Almost surely, 2^251140545341 is an apocalyptic number.

It is an amenable number.

251140545341 is a deficient number, since it is larger than the sum of its proper divisors (51778485091).

251140545341 is an equidigital number, since it uses as much as digits as its factorization.

251140545341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99382928 (or 99382909 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 251140545341 its reverse (143545041152), we get a palindrome (394685586493).

The spelling of 251140545341 in words is "two hundred fifty-one billion, one hundred forty million, five hundred forty-five thousand, three hundred forty-one".