5129961 has 16 divisors (see below), whose sum is σ = 7076160. Its totient is φ = 3303680.

The previous prime is 5129959. The next prime is 5129983. The reversal of 5129961 is 1699215.

It is a cyclic number.

It is not a de Polignac number, because 5129961 - 2¹ = 5129959 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (5129261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21901 + ... + 22133.

It is an arithmetic number, because the mean of its divisors is an integer number (442260).

Almost surely, 2^5129961 is an apocalyptic number.

It is an amenable number.

5129961 is a deficient number, since it is larger than the sum of its proper divisors (1946199).

5129961 is a wasteful number, since it uses less digits than its factorization.

5129961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456.

The product of its digits is 4860, while the sum is 33.

The square root of 5129961 is about 2264.9417211045. The cubic root of 5129961 is about 172.4664753166.

It can be divided in two parts, 51299 and 61, that added together give a triangular number (51360 = T₃₂₀).

The spelling of 5129961 in words is "five million, one hundred twenty-nine thousand, nine hundred sixty-one".