101538879 has 8 divisors (see below), whose sum is σ = 145799472. Its totient is φ = 62485440.

The previous prime is 101538863. The next prime is 101538917. The reversal of 101538879 is 978835101.

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

It is not a de Polignac number, because 101538879 - 2⁴ = 101538863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101538879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101538379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1301742 + ... + 1301819.

It is an arithmetic number, because the mean of its divisors is an integer number (18224934).

Almost surely, 2^101538879 is an apocalyptic number.

101538879 is a deficient number, since it is larger than the sum of its proper divisors (44260593).

101538879 is a wasteful number, since it uses less digits than its factorization.

101538879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2603577.

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 101538879 is about 10076.6501874383. The cubic root of 101538879 is about 466.5277212762.

The spelling of 101538879 in words is "one hundred one million, five hundred thirty-eight thousand, eight hundred seventy-nine".