5156905 has 8 divisors (see below), whose sum is σ = 6664392. Its totient is φ = 3808128.

The previous prime is 5156897. The next prime is 5156911. The reversal of 5156905 is 5096515.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 53824 + 5103081 = 232^2 + 2259^2 .

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 5156905 - 2³ = 5156897 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, 39604 + ... + 39733.

It is an arithmetic number, because the mean of its divisors is an integer number (833049).

Almost surely, 2^5156905 is an apocalyptic number.

It is an amenable number.

5156905 is a deficient number, since it is larger than the sum of its proper divisors (1507487).

5156905 is a wasteful number, since it uses less digits than its factorization.

5156905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79355.

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 5156905 is about 2270.8819872464. The cubic root of 5156905 is about 172.7678957169.

The spelling of 5156905 in words is "five million, one hundred fifty-six thousand, nine hundred five".