100401273 has 24 divisors (see below), whose sum is σ = 166061376. Its totient is φ = 57261600.

The previous prime is 100401241. The next prime is 100401299. The reversal of 100401273 is 372104001.

It is not a de Polignac number, because 100401273 - 2⁵ = 100401241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100401673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40438 + ... + 42848.

It is an arithmetic number, because the mean of its divisors is an integer number (6919224).

Almost surely, 2^100401273 is an apocalyptic number.

It is an amenable number.

100401273 is a deficient number, since it is larger than the sum of its proper divisors (65660103).

100401273 is a wasteful number, since it uses less digits than its factorization.

100401273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085 (or 3082 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 100401273 is about 10020.0435627796. The cubic root of 100401273 is about 464.7789028677.

Adding to 100401273 its reverse (372104001), we get a palindrome (472505274).

The spelling of 100401273 in words is "one hundred million, four hundred one thousand, two hundred seventy-three".