100409542 has 8 divisors (see below), whose sum is σ = 155808000. Its totient is φ = 48473544.

The previous prime is 100409539. The next prime is 100409557. The reversal of 100409542 is 245904001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×100409542² = 20164152249299528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 865542 + ... + 865657.

It is an arithmetic number, because the mean of its divisors is an integer number (19476000).

Almost surely, 2^100409542 is an apocalyptic number.

100409542 is a deficient number, since it is larger than the sum of its proper divisors (55398458).

100409542 is a wasteful number, since it uses less digits than its factorization.

100409542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731230.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 100409542 is about 10020.4561772406. The cubic root of 100409542 is about 464.7916621722.

The spelling of 100409542 in words is "one hundred million, four hundred nine thousand, five hundred forty-two".