5133123451 has 4 divisors (see below), whose sum is σ = 5153096952. Its totient is φ = 5113149952.

The previous prime is 5133123439. The next prime is 5133123469. The reversal of 5133123451 is 1543213315.

It is a happy number.

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 5133123451 - 2¹⁷ = 5132992379 is a prime.

It is a super-2 number, since 2×5133123451² = 52697912726412298802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5133123431) 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, 9986365 + ... + 9986878.

It is an arithmetic number, because the mean of its divisors is an integer number (1288274238).

Almost surely, 2^5133123451 is an apocalyptic number.

5133123451 is a deficient number, since it is larger than the sum of its proper divisors (19973501).

5133123451 is a wasteful number, since it uses less digits than its factorization.

5133123451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19973500.

The product of its digits is 5400, while the sum is 28.

The square root of 5133123451 is about 71645.8194942315. The cubic root of 5133123451 is about 1725.0190799262.

Adding to 5133123451 its reverse (1543213315), we get a palindrome (6676336766).

The spelling of 5133123451 in words is "five billion, one hundred thirty-three million, one hundred twenty-three thousand, four hundred fifty-one".