100985475 has 24 divisors (see below), whose sum is σ = 175752640. Its totient is φ = 51023520.

The previous prime is 100985473. The next prime is 100985477. The reversal of 100985475 is 574589001.

It is an interprime number because it is at equal distance from previous prime (100985473) and next prime (100985477).

It is not a de Polignac number, because 100985475 - 2¹ = 100985473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100985471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34009 + ... + 36858.

Almost surely, 2^100985475 is an apocalyptic number.

100985475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100985475 is a deficient number, since it is larger than the sum of its proper divisors (74767165).

100985475 is a wasteful number, since it uses less digits than its factorization.

100985475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70899 (or 70894 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 100985475 is about 10049.1529493784. The cubic root of 100985475 is about 465.6786252669.

The spelling of 100985475 in words is "one hundred million, nine hundred eighty-five thousand, four hundred seventy-five".