5130121565 has 8 divisors (see below), whose sum is σ = 6196915968. Its totient is φ = 4076917200.

The previous prime is 5130121561. The next prime is 5130121573. The reversal of 5130121565 is 5651210315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5130121565 - 2² = 5130121561 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 (5130121561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3396677 + ... + 3398186.

It is an arithmetic number, because the mean of its divisors is an integer number (774614496).

Almost surely, 2^5130121565 is an apocalyptic number.

It is an amenable number.

5130121565 is a deficient number, since it is larger than the sum of its proper divisors (1066794403).

5130121565 is a wasteful number, since it uses less digits than its factorization.

5130121565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6795019.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 5130121565 is about 71624.8669457752. The cubic root of 5130121565 is about 1724.6827466689.

The spelling of 5130121565 in words is "five billion, one hundred thirty million, one hundred twenty-one thousand, five hundred sixty-five".