5145267251 has 4 divisors (see below), whose sum is σ = 5145454872. Its totient is φ = 5145079632.

The previous prime is 5145267247. The next prime is 5145267269. The reversal of 5145267251 is 1527625415.

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

It is a cyclic number.

It is not a de Polignac number, because 5145267251 - 2² = 5145267247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5145260251) 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, 43781 + ... + 110486.

It is an arithmetic number, because the mean of its divisors is an integer number (1286363718).

Almost surely, 2^5145267251 is an apocalyptic number.

5145267251 is a deficient number, since it is larger than the sum of its proper divisors (187621).

5145267251 is a wasteful number, since it uses less digits than its factorization.

5145267251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187620.

The product of its digits is 84000, while the sum is 38.

The square root of 5145267251 is about 71730.5182680287. The cubic root of 5145267251 is about 1726.3783425634.

The spelling of 5145267251 in words is "five billion, one hundred forty-five million, two hundred sixty-seven thousand, two hundred fifty-one".