5012138243 has 4 divisors (see below), whose sum is σ = 5728158000. Its totient is φ = 4296118488.

The previous prime is 5012138189. The next prime is 5012138251. The reversal of 5012138243 is 3428312105.

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 5012138243 - 2²⁸ = 4743702787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5012138143) 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, 358009868 + ... + 358009881.

It is an arithmetic number, because the mean of its divisors is an integer number (1432039500).

Almost surely, 2^5012138243 is an apocalyptic number.

5012138243 is a deficient number, since it is larger than the sum of its proper divisors (716019757).

5012138243 is an equidigital number, since it uses as much as digits as its factorization.

5012138243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716019756.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 5012138243 is about 70796.4564296830. The cubic root of 5012138243 is about 1711.3585686771.

The spelling of 5012138243 in words is "five billion, twelve million, one hundred thirty-eight thousand, two hundred forty-three".