100135472 has 20 divisors (see below), whose sum is σ = 204224280. Its totient is φ = 47432448.

The previous prime is 100135471. The next prime is 100135493. The reversal of 100135472 is 274531001.

It is a super-2 number, since 2×100135472² = 20054225505325568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100135471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164393 + ... + 165000.

It is an arithmetic number, because the mean of its divisors is an integer number (10211214).

Almost surely, 2^100135472 is an apocalyptic number.

It is an amenable number.

100135472 is an abundant number, since it is smaller than the sum of its proper divisors (104088808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100135472 is a wasteful number, since it uses less digits than its factorization.

100135472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329420 (or 329414 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 100135472 is about 10006.7713074698. The cubic root of 100135472 is about 464.3683905560.

Adding to 100135472 its reverse (274531001), we get a palindrome (374666473).

The spelling of 100135472 in words is "one hundred million, one hundred thirty-five thousand, four hundred seventy-two".