100112429 has 4 divisors (see below), whose sum is σ = 100132476. Its totient is φ = 100092384.

The previous prime is 100112401. The next prime is 100112431. The reversal of 100112429 is 924211001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 90687529 + 9424900 = 9523^2 + 3070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100112429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100112429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100112479) 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, 4127 + ... + 14739.

It is an arithmetic number, because the mean of its divisors is an integer number (25033119).

Almost surely, 2^100112429 is an apocalyptic number.

It is an amenable number.

100112429 is a deficient number, since it is larger than the sum of its proper divisors (20047).

100112429 is an equidigital number, since it uses as much as digits as its factorization.

100112429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20046.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 100112429 is about 10005.6198708526. The cubic root of 100112429 is about 464.3327679423.

The spelling of 100112429 in words is "one hundred million, one hundred twelve thousand, four hundred twenty-nine".