5121090 has 64 divisors (see below), whose sum is σ = 14716800. Its totient is φ = 1259712.

The previous prime is 5121071. The next prime is 5121113. The reversal of 5121090 is 901215.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2781 + ... + 4239.

It is an arithmetic number, because the mean of its divisors is an integer number (229950).

Almost surely, 2^5121090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5121090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7358400).

5121090 is an abundant number, since it is smaller than the sum of its proper divisors (9595710).

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

5121090 is a wasteful number, since it uses less digits than its factorization.

5121090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488 (or 1482 counting only the distinct ones).

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

The square root of 5121090 is about 2262.9825452265. The cubic root of 5121090 is about 172.3670052400.

The spelling of 5121090 in words is "five million, one hundred twenty-one thousand, ninety".