100472187 has 8 divisors (see below), whose sum is σ = 134069760. Its totient is φ = 66928040.

The previous prime is 100472173. The next prime is 100472191. The reversal of 100472187 is 781274001.

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

It is a cyclic number.

It is not a de Polignac number, because 100472187 - 2¹⁵ = 100439419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100472107) 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, 8739 + ... + 16652.

It is an arithmetic number, because the mean of its divisors is an integer number (16758720).

Almost surely, 2^100472187 is an apocalyptic number.

100472187 is a deficient number, since it is larger than the sum of its proper divisors (33597573).

100472187 is a wasteful number, since it uses less digits than its factorization.

100472187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26713.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 100472187 is about 10023.5815455355. The cubic root of 100472187 is about 464.8883024579. Note that the first 3 decimals are identical.

The spelling of 100472187 in words is "one hundred million, four hundred seventy-two thousand, one hundred eighty-seven".