251230411145 has 16 divisors (see below), whose sum is σ = 349397307648. Its totient is φ = 169845910080.

The previous prime is 251230411139. The next prime is 251230411151. The reversal of 251230411145 is 541114032152.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (251230411139) and next prime (251230411151).

It is not a de Polignac number, because 251230411145 - 2¹⁰ = 251230410121 is a prime.

It is a super-2 number, since 2×251230411145² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50546894 + ... + 50551863.

It is an arithmetic number, because the mean of its divisors is an integer number (21837331728).

Almost surely, 2^251230411145 is an apocalyptic number.

It is an amenable number.

251230411145 is a deficient number, since it is larger than the sum of its proper divisors (98166896503).

251230411145 is a wasteful number, since it uses less digits than its factorization.

251230411145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101098840.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 251230411145 its reverse (541114032152), we get a palindrome (792344443297).

The spelling of 251230411145 in words is "two hundred fifty-one billion, two hundred thirty million, four hundred eleven thousand, one hundred forty-five".