5123905405 has 8 divisors (see below), whose sum is σ = 6232915512. Its totient is φ = 4042971648.

The previous prime is 5123905393. The next prime is 5123905421. The reversal of 5123905405 is 5045093215.

It can be written as a sum of positive squares in 4 ways, for example, as 1730726404 + 3393179001 = 41602^2 + 58251^2 .

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 5123905405 - 2²⁵ = 5090350973 is a prime.

It is a Duffinian number.

It is a congruent 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, 7018684 + ... + 7019413.

It is an arithmetic number, because the mean of its divisors is an integer number (779114439).

Almost surely, 2^5123905405 is an apocalyptic number.

It is an amenable number.

5123905405 is a deficient number, since it is larger than the sum of its proper divisors (1109010107).

5123905405 is a wasteful number, since it uses less digits than its factorization.

5123905405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14038175.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 5123905405 is about 71581.4599250392. The cubic root of 5123905405 is about 1723.9858666924.

The spelling of 5123905405 in words is "five billion, one hundred twenty-three million, nine hundred five thousand, four hundred five".