100492491 has 32 divisors (see below), whose sum is σ = 155575296. Its totient is φ = 57024000.

The previous prime is 100492411. The next prime is 100492493. The reversal of 100492491 is 194294001.

It is not a de Polignac number, because 100492491 - 2⁷ = 100492363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100492493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151701 + ... + 152361.

It is an arithmetic number, because the mean of its divisors is an integer number (4861728).

Almost surely, 2^100492491 is an apocalyptic number.

100492491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100492491 is a deficient number, since it is larger than the sum of its proper divisors (55082805).

100492491 is a wasteful number, since it uses less digits than its factorization.

100492491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 100492491 is about 10024.5943060056. The cubic root of 100492491 is about 464.9196161200.

The spelling of 100492491 in words is "one hundred million, four hundred ninety-two thousand, four hundred ninety-one".