100542590 has 32 divisors (see below), whose sum is σ = 195255360. Its totient is φ = 37133824.

The previous prime is 100542577. The next prime is 100542601. The reversal of 100542590 is 95245001.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3431 + ... + 14589.

It is an arithmetic number, because the mean of its divisors is an integer number (6101730).

Almost surely, 2^100542590 is an apocalyptic number.

100542590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100542590 is a deficient number, since it is larger than the sum of its proper divisors (94712770).

100542590 is a wasteful number, since it uses less digits than its factorization.

100542590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11236.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 100542590 is about 10027.0927990121. The cubic root of 100542590 is about 464.9968628146.

Adding to 100542590 its reverse (95245001), we get a palindrome (195787591).

The spelling of 100542590 in words is "one hundred million, five hundred forty-two thousand, five hundred ninety".