101398959 has 20 divisors (see below), whose sum is σ = 152680704. Its totient is φ = 67060224.

The previous prime is 101398951. The next prime is 101398963. The reversal of 101398959 is 959893101.

It is not a de Polignac number, because 101398959 - 2³ = 101398951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101398951) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5359 + ... + 15215.

Almost surely, 2^101398959 is an apocalyptic number.

101398959 is a deficient number, since it is larger than the sum of its proper divisors (51281745).

101398959 is an equidigital number, since it uses as much as digits as its factorization.

101398959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9996 (or 9987 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The square root of 101398959 is about 10069.7050105750. The cubic root of 101398959 is about 466.3133319180.

The spelling of 101398959 in words is "one hundred one million, three hundred ninety-eight thousand, nine hundred fifty-nine".