100539399 has 4 divisors (see below), whose sum is σ = 134052536. Its totient is φ = 67026264.

The previous prime is 100539391. The next prime is 100539401. The reversal of 100539399 is 993935001.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 100539399 - 2³ = 100539391 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 (100539391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16756564 + ... + 16756569.

It is an arithmetic number, because the mean of its divisors is an integer number (33513134).

Almost surely, 2^100539399 is an apocalyptic number.

100539399 is a deficient number, since it is larger than the sum of its proper divisors (33513137).

100539399 is an equidigital number, since it uses as much as digits as its factorization.

100539399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33513136.

The product of its (nonzero) digits is 32805, while the sum is 39.

The square root of 100539399 is about 10026.9336788472. The cubic root of 100539399 is about 464.9919434377.

It can be divided in two parts, 1005 and 39399, that added together give a palindrome (40404).

The spelling of 100539399 in words is "one hundred million, five hundred thirty-nine thousand, three hundred ninety-nine".