5123251 has 4 divisors (see below), whose sum is σ = 5855152. Its totient is φ = 4391352.

The previous prime is 5123231. The next prime is 5123257. The reversal of 5123251 is 1523215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1523215 = 5 ⋅304643.

It is not a de Polignac number, because 5123251 - 2⁵ = 5123219 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5123257) 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, 365940 + ... + 365953.

It is an arithmetic number, because the mean of its divisors is an integer number (1463788).

Almost surely, 2^5123251 is an apocalyptic number.

5123251 is a deficient number, since it is larger than the sum of its proper divisors (731901).

5123251 is an equidigital number, since it uses as much as digits as its factorization.

5123251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731900.

The product of its digits is 300, while the sum is 19.

The square root of 5123251 is about 2263.4599620934. The cubic root of 5123251 is about 172.3912470008.

Adding to 5123251 its reverse (1523215), we get a palindrome (6646466).

It can be divided in two parts, 5 and 123251, that added together give a triangular number (123256 = T₄₉₆).

The spelling of 5123251 in words is "five million, one hundred twenty-three thousand, two hundred fifty-one".