101204639 has 8 divisors (see below), whose sum is σ = 103958400. Its totient is φ = 98487576.

The previous prime is 101204633. The next prime is 101204641. The reversal of 101204639 is 936402101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101204639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101204633) 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 7 ways as a sum of consecutive naturals, for example, 3539 + ... + 14660.

It is an arithmetic number, because the mean of its divisors is an integer number (12994800).

Almost surely, 2^101204639 is an apocalyptic number.

101204639 is a deficient number, since it is larger than the sum of its proper divisors (2753761).

101204639 is an equidigital number, since it uses as much as digits as its factorization.

101204639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18349.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 101204639 is about 10060.0516400265. The cubic root of 101204639 is about 466.0152619536.

The spelling of 101204639 in words is "one hundred one million, two hundred four thousand, six hundred thirty-nine".