100472245 has 8 divisors (see below), whose sum is σ = 120801240. Its totient is φ = 80221440.

The previous prime is 100472233. The next prime is 100472249. The reversal of 100472245 is 542274001.

It can be written as a sum of positive squares in 4 ways, for example, as 8427409 + 92044836 = 2903^2 + 9594^2 .

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

It is not a de Polignac number, because 100472245 - 2⁵ = 100472213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100472249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16680 + ... + 21889.

It is an arithmetic number, because the mean of its divisors is an integer number (15100155).

Almost surely, 2^100472245 is an apocalyptic number.

It is an amenable number.

100472245 is a deficient number, since it is larger than the sum of its proper divisors (20328995).

100472245 is an equidigital number, since it uses as much as digits as its factorization.

100472245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39095.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 100472245 is about 10023.5844387125. The cubic root of 100472245 is about 464.8883919139. Note that the first 3 decimals are identical.

The spelling of 100472245 in words is "one hundred million, four hundred seventy-two thousand, two hundred forty-five".