5109012 has 18 divisors (see below), whose sum is σ = 12914538. Its totient is φ = 1702992.

The previous prime is 5108989. The next prime is 5109019. The reversal of 5109012 is 2109015.

It can be written as a sum of positive squares in only one way, i.e., 4309776 + 799236 = 2076^2 + 894^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×5109012² = 52204007232288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5109019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70923 + ... + 70994.

Almost surely, 2^5109012 is an apocalyptic number.

It is an amenable number.

5109012 is an abundant number, since it is smaller than the sum of its proper divisors (7805526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5109012 is a wasteful number, since it uses less digits than its factorization.

5109012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141927 (or 141922 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 5109012 is about 2260.3123677934. The cubic root of 5109012 is about 172.2313903933.

The spelling of 5109012 in words is "five million, one hundred nine thousand, twelve".