100139814 has 28 divisors (see below), whose sum is σ = 225214836. Its totient is φ = 33379452.

The previous prime is 100139807. The next prime is 100139821. The reversal of 100139814 is 418931001.

It is an interprime number because it is at equal distance from previous prime (100139807) and next prime (100139821).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 32884 + ... + 35799.

It is an arithmetic number, because the mean of its divisors is an integer number (8043387).

Almost surely, 2^100139814 is an apocalyptic number.

100139814 is an abundant number, since it is smaller than the sum of its proper divisors (125075022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100139814 is an frugal number, since it uses more digits than its factorization.

100139814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68703 (or 68688 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 100139814 is about 10006.9882582124. The cubic root of 100139814 is about 464.3751023248.

The spelling of 100139814 in words is "one hundred million, one hundred thirty-nine thousand, eight hundred fourteen".