5151043213 has 4 divisors (see below), whose sum is σ = 5160892768. Its totient is φ = 5141193660.

The previous prime is 5151043201. The next prime is 5151043243. The reversal of 5151043213 is 3123401515.

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 a de Polignac number, because none of the positive numbers 2^k-5151043213 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 (5151043243) 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, 4923993 + ... + 4925038.

It is an arithmetic number, because the mean of its divisors is an integer number (1290223192).

Almost surely, 2^5151043213 is an apocalyptic number.

It is an amenable number.

5151043213 is a deficient number, since it is larger than the sum of its proper divisors (9849555).

5151043213 is an equidigital number, since it uses as much as digits as its factorization.

5151043213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9849554.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 5151043213 is about 71770.7685133718. The cubic root of 5151043213 is about 1727.0240988985.

Adding to 5151043213 its reverse (3123401515), we get a palindrome (8274444728).

The spelling of 5151043213 in words is "five billion, one hundred fifty-one million, forty-three thousand, two hundred thirteen".