5151231005 has 4 divisors (see below), whose sum is σ = 6181477212. Its totient is φ = 4120984800.

The previous prime is 5151230989. The next prime is 5151231049. The reversal of 5151231005 is 5001321515.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3068495236 + 2082735769 = 55394^2 + 45637^2 .

It is not a de Polignac number, because 5151231005 - 2⁴ = 5151230989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515123096 + ... + 515123105.

It is an arithmetic number, because the mean of its divisors is an integer number (1545369303).

Almost surely, 2^5151231005 is an apocalyptic number.

It is an amenable number.

5151231005 is a deficient number, since it is larger than the sum of its proper divisors (1030246207).

5151231005 is a wasteful number, since it uses less digits than its factorization.

5151231005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030246206.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 5151231005 is about 71772.0767778110. The cubic root of 5151231005 is about 1727.0450860627.

The spelling of 5151231005 in words is "five billion, one hundred fifty-one million, two hundred thirty-one thousand, five".