100401272 has 32 divisors (see below), whose sum is σ = 191715120. Its totient is φ = 49286400.

The previous prime is 100401241. The next prime is 100401299. The reversal of 100401272 is 272104001.

It is a self number, because there is not a number n which added to its sum of digits gives 100401272.

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, 110243 + ... + 111149.

Almost surely, 2^100401272 is an apocalyptic number.

It is an amenable number.

100401272 is a deficient number, since it is larger than the sum of its proper divisors (91313848).

100401272 is a wasteful number, since it uses less digits than its factorization.

100401272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151 (or 1147 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 100401272 is about 10020.0435128796. The cubic root of 100401272 is about 464.7789013246.

Adding to 100401272 its reverse (272104001), we get a palindrome (372505273).

The spelling of 100401272 in words is "one hundred million, four hundred one thousand, two hundred seventy-two".