100231664 has 20 divisors (see below), whose sum is σ = 209137656. Its totient is φ = 46260672.

The previous prime is 100231661. The next prime is 100231673. The reversal of 100231664 is 466132001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100231661) 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, 240734 + ... + 241149.

Almost surely, 2^100231664 is an apocalyptic number.

It is an amenable number.

100231664 is an abundant number, since it is smaller than the sum of its proper divisors (108905992).

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

100231664 is a wasteful number, since it uses less digits than its factorization.

100231664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481904 (or 481898 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 100231664 is about 10011.5764992333. The cubic root of 100231664 is about 464.5170366113.

Adding to 100231664 its reverse (466132001), we get a palindrome (566363665).

The spelling of 100231664 in words is "one hundred million, two hundred thirty-one thousand, six hundred sixty-four".