5145311155 has 4 divisors (see below), whose sum is σ = 6174373392. Its totient is φ = 4116248920.

The previous prime is 5145311123. The next prime is 5145311161. The reversal of 5145311155 is 5511135415.

It is a happy number.

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

It is not a de Polignac number, because 5145311155 - 2⁵ = 5145311123 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 514531111 + ... + 514531120.

It is an arithmetic number, because the mean of its divisors is an integer number (1543593348).

Almost surely, 2^5145311155 is an apocalyptic number.

5145311155 is a deficient number, since it is larger than the sum of its proper divisors (1029062237).

5145311155 is a wasteful number, since it uses less digits than its factorization.

5145311155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029062236.

The product of its digits is 7500, while the sum is 31.

The square root of 5145311155 is about 71730.8243016906. The cubic root of 5145311155 is about 1726.3832528816.

The spelling of 5145311155 in words is "five billion, one hundred forty-five million, three hundred eleven thousand, one hundred fifty-five".