100521974 has 16 divisors (see below), whose sum is σ = 172462848. Its totient is φ = 43045992.

The previous prime is 100521959. The next prime is 100521977. The reversal of 100521974 is 479125001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100521977) 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, 22949 + ... + 26975.

It is an arithmetic number, because the mean of its divisors is an integer number (10778928).

Almost surely, 2^100521974 is an apocalyptic number.

100521974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

100521974 is a deficient number, since it is larger than the sum of its proper divisors (71940874).

100521974 is a wasteful number, since it uses less digits than its factorization.

100521974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5819.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 100521974 is about 10026.0647314886. The cubic root of 100521974 is about 464.9650785044.

Adding to 100521974 its reverse (479125001), we get a palindrome (579646975).

The spelling of 100521974 in words is "one hundred million, five hundred twenty-one thousand, nine hundred seventy-four".