100491654 has 16 divisors (see below), whose sum is σ = 203737392. Its totient is φ = 33038208.

The previous prime is 100491653. The next prime is 100491679. The reversal of 100491654 is 456194001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100491653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114279 + ... + 115154.

It is an arithmetic number, because the mean of its divisors is an integer number (12733587).

Almost surely, 2^100491654 is an apocalyptic number.

100491654 is an abundant number, since it is smaller than the sum of its proper divisors (103245738).

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

100491654 is a wasteful number, since it uses less digits than its factorization.

100491654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229511.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 100491654 is about 10024.5525585933. The cubic root of 100491654 is about 464.9183253476.

The spelling of 100491654 in words is "one hundred million, four hundred ninety-one thousand, six hundred fifty-four".