5123945305 has 8 divisors (see below), whose sum is σ = 6151727232. Its totient is φ = 4097161008.

The previous prime is 5123945287. The next prime is 5123945339. The reversal of 5123945305 is 5035493215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5123945305 - 2²⁵ = 5090390873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238059 + ... + 258688.

It is an arithmetic number, because the mean of its divisors is an integer number (768965904).

Almost surely, 2^5123945305 is an apocalyptic number.

It is an amenable number.

5123945305 is a deficient number, since it is larger than the sum of its proper divisors (1027781927).

5123945305 is a wasteful number, since it uses less digits than its factorization.

5123945305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498815.

The product of its (nonzero) digits is 81000, while the sum is 37.

The square root of 5123945305 is about 71581.7386279490. The cubic root of 5123945305 is about 1723.9903415901.

The spelling of 5123945305 in words is "five billion, one hundred twenty-three million, nine hundred forty-five thousand, three hundred five".