101004639 has 16 divisors (see below), whose sum is σ = 136012800. Its totient is φ = 66670560.

The previous prime is 101004619. The next prime is 101004647. The reversal of 101004639 is 936400101.

It is not a de Polignac number, because 101004639 - 2⁸ = 101004383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101004619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218869 + ... + 219329.

It is an arithmetic number, because the mean of its divisors is an integer number (8500800).

Almost surely, 2^101004639 is an apocalyptic number.

101004639 is a deficient number, since it is larger than the sum of its proper divisors (35008161).

101004639 is a wasteful number, since it uses less digits than its factorization.

101004639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 101004639 is about 10050.1064173470. The cubic root of 101004639 is about 465.7080806604.

The spelling of 101004639 in words is "one hundred one million, four thousand, six hundred thirty-nine".