100005045 has 16 divisors (see below), whose sum is σ = 182866560. Its totient is φ = 45716544.

The previous prime is 100005041. The next prime is 100005083. The reversal of 100005045 is 540500001.

It is not a de Polignac number, because 100005045 - 2² = 100005041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100005041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476110 + ... + 476319.

It is an arithmetic number, because the mean of its divisors is an integer number (11429160).

Almost surely, 2^100005045 is an apocalyptic number.

100005045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100005045 is a deficient number, since it is larger than the sum of its proper divisors (82861515).

100005045 is an equidigital number, since it uses as much as digits as its factorization.

100005045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952444.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 100005045 is about 10000.2522468186. The cubic root of 100005045 is about 464.1666888352.

Adding to 100005045 its reverse (540500001), we get a palindrome (640505046).

The spelling of 100005045 in words is "one hundred million, five thousand, forty-five".