100472145 has 8 divisors (see below), whose sum is σ = 160755456. Its totient is φ = 53585136.

The previous prime is 100472143. The next prime is 100472149. The reversal of 100472145 is 541274001.

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

It is not a de Polignac number, because 100472145 - 2¹ = 100472143 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100472143) 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, 3349057 + ... + 3349086.

It is an arithmetic number, because the mean of its divisors is an integer number (20094432).

Almost surely, 2^100472145 is an apocalyptic number.

100472145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100472145 is a deficient number, since it is larger than the sum of its proper divisors (60283311).

100472145 is an equidigital number, since it uses as much as digits as its factorization.

100472145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6698151.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 100472145 is about 10023.5794504758. The cubic root of 100472145 is about 464.8882376794. Note that the first 3 decimals are identical.

The spelling of 100472145 in words is "one hundred million, four hundred seventy-two thousand, one hundred forty-five".