100170145 has 8 divisors (see below), whose sum is σ = 124081920. Its totient is φ = 77550960.

The previous prime is 100170131. The next prime is 100170149. The reversal of 100170145 is 541071001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100170145 - 2⁹ = 100169633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100170149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322975 + ... + 323284.

It is an arithmetic number, because the mean of its divisors is an integer number (15510240).

Almost surely, 2^100170145 is an apocalyptic number.

It is an amenable number.

100170145 is a deficient number, since it is larger than the sum of its proper divisors (23911775).

100170145 is an equidigital number, since it uses as much as digits as its factorization.

100170145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646295.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 100170145 is about 10008.5036344101. The cubic root of 100170145 is about 464.4219819120.

The spelling of 100170145 in words is "one hundred million, one hundred seventy thousand, one hundred forty-five".