105101639 has 6 divisors (see below), whose sum is σ = 106052856. Its totient is φ = 104158880.

The previous prime is 105101629. The next prime is 105101641. The reversal of 105101639 is 936101501.

It is a de Polignac number, because none of the positive numbers 2^k-105101639 is a prime.

It is a super-2 number, since 2×105101639² = 22092709040972642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105101629) 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, 8654 + ... + 16884.

It is an arithmetic number, because the mean of its divisors is an integer number (17675476).

Almost surely, 2^105101639 is an apocalyptic number.

105101639 is a deficient number, since it is larger than the sum of its proper divisors (951217).

105101639 is an frugal number, since it uses more digits than its factorization.

105101639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8457 (or 8344 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 105101639 is about 10251.9090417346. The cubic root of 105101639 is about 471.9215717027.

The spelling of 105101639 in words is "one hundred five million, one hundred one thousand, six hundred thirty-nine".