5151154121 has 4 divisors (see below), whose sum is σ = 5151696000. Its totient is φ = 5150612244.

The previous prime is 5151154117. The next prime is 5151154219. The reversal of 5151154121 is 1214511515.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5151154121 - 2² = 5151154117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5151159121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256421 + ... + 275778.

It is an arithmetic number, because the mean of its divisors is an integer number (1287924000).

Almost surely, 2^5151154121 is an apocalyptic number.

It is an amenable number.

5151154121 is a deficient number, since it is larger than the sum of its proper divisors (541879).

5151154121 is an equidigital number, since it uses as much as digits as its factorization.

5151154121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541878.

The product of its digits is 1000, while the sum is 26.

The square root of 5151154121 is about 71771.5411636116. The cubic root of 5151154121 is about 1727.0364937608.

Adding to 5151154121 its reverse (1214511515), we get a palindrome (6365665636).

The spelling of 5151154121 in words is "five billion, one hundred fifty-one million, one hundred fifty-four thousand, one hundred twenty-one".