5129621 has 16 divisors (see below), whose sum is σ = 6187008. Its totient is φ = 4158000.

The previous prime is 5129617. The next prime is 5129647. The reversal of 5129621 is 1269215.

It is not a de Polignac number, because 5129621 - 2² = 5129617 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5129671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24206 + ... + 24416.

It is an arithmetic number, because the mean of its divisors is an integer number (386688).

Almost surely, 2^5129621 is an apocalyptic number.

It is an amenable number.

5129621 is a deficient number, since it is larger than the sum of its proper divisors (1057387).

5129621 is a wasteful number, since it uses less digits than its factorization.

5129621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392.

The product of its digits is 1080, while the sum is 26.

The square root of 5129621 is about 2264.8666627420. The cubic root of 5129621 is about 172.4626650279.

The spelling of 5129621 in words is "five million, one hundred twenty-nine thousand, six hundred twenty-one".