100406375 has 8 divisors (see below), whose sum is σ = 125307312. Its totient is φ = 80325000.

The previous prime is 100406363. The next prime is 100406387. The reversal of 100406375 is 573604001.

It is an interprime number because it is at equal distance from previous prime (100406363) and next prime (100406387).

It is not a de Polignac number, because 100406375 - 2⁴ = 100406359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401501 + ... + 401750.

It is an arithmetic number, because the mean of its divisors is an integer number (15663414).

Almost surely, 2^100406375 is an apocalyptic number.

100406375 is a deficient number, since it is larger than the sum of its proper divisors (24900937).

100406375 is an frugal number, since it uses more digits than its factorization.

100406375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803266 (or 803256 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 100406375 is about 10020.2981492568. The cubic root of 100406375 is about 464.7867754830.

The spelling of 100406375 in words is "one hundred million, four hundred six thousand, three hundred seventy-five".