100021732 has 12 divisors (see below), whose sum is σ = 175690620. Its totient is φ = 49824416.

The previous prime is 100021729. The next prime is 100021751. The reversal of 100021732 is 237120001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15492096 + 84529636 = 3936^2 + 9194^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45403 + ... + 47554.

It is an arithmetic number, because the mean of its divisors is an integer number (14640885).

Almost surely, 2^100021732 is an apocalyptic number.

It is an amenable number.

100021732 is a deficient number, since it is larger than the sum of its proper divisors (75668888).

100021732 is a wasteful number, since it uses less digits than its factorization.

100021732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93230 (or 93228 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 100021732 is about 10001.0865409714. The cubic root of 100021732 is about 464.1925045954.

Adding to 100021732 its reverse (237120001), we get a palindrome (337141733).

The spelling of 100021732 in words is "one hundred million, twenty-one thousand, seven hundred thirty-two".