5101639 has 4 divisors (see below), whose sum is σ = 5266240. Its totient is φ = 4937040.

The previous prime is 5101631. The next prime is 5101643. The reversal of 5101639 is 9361015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5101639 - 2³ = 5101631 is a prime.

It is a Duffinian number.

5101639 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5101631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82254 + ... + 82315.

It is an arithmetic number, because the mean of its divisors is an integer number (1316560).

Almost surely, 2^5101639 is an apocalyptic number.

5101639 is a deficient number, since it is larger than the sum of its proper divisors (164601).

5101639 is a wasteful number, since it uses less digits than its factorization.

5101639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164600.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 5101639 is about 2258.6808096763. The cubic root of 5101639 is about 172.1484993900.

The spelling of 5101639 in words is "five million, one hundred one thousand, six hundred thirty-nine".