515430401141251 has 16 divisors (see below), whose sum is σ = 538703327312640. Its totient is φ = 492524153856000.

The previous prime is 515430401141219. The next prime is 515430401141287. The reversal of 515430401141251 is 152141104034515.

It is a cyclic number.

It is not a de Polignac number, because 515430401141251 - 2⁵ = 515430401141219 is a prime.

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 515430401141251.

It is not an unprimeable number, because it can be changed into a prime (515430401141351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1196370126 + ... + 1196800876.

It is an arithmetic number, because the mean of its divisors is an integer number (33668957957040).

Almost surely, 2^{515430401141251} is an apocalyptic number.

515430401141251 is a deficient number, since it is larger than the sum of its proper divisors (23272926171389).

515430401141251 is a wasteful number, since it uses less digits than its factorization.

515430401141251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856254.

The product of its (nonzero) digits is 48000, while the sum is 37.

Adding to 515430401141251 its reverse (152141104034515), we get a palindrome (667571505175766).

The spelling of 515430401141251 in words is "five hundred fifteen trillion, four hundred thirty billion, four hundred one million, one hundred forty-one thousand, two hundred fifty-one".