102100475 has 6 divisors (see below), whose sum is σ = 126604620. Its totient is φ = 81680360.

The previous prime is 102100451. The next prime is 102100513. The reversal of 102100475 is 574001201.

It is not a de Polignac number, because 102100475 - 2¹⁴ = 102084091 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2041985 + ... + 2042034.

It is an arithmetic number, because the mean of its divisors is an integer number (21100770).

Almost surely, 2^102100475 is an apocalyptic number.

102100475 is a deficient number, since it is larger than the sum of its proper divisors (24504145).

102100475 is an equidigital number, since it uses as much as digits as its factorization.

102100475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084029 (or 4084024 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 102100475 is about 10104.4779677131. The cubic root of 102100475 is about 467.3862382502.

Adding to 102100475 its reverse (574001201), we get a palindrome (676101676).

The spelling of 102100475 in words is "one hundred two million, one hundred thousand, four hundred seventy-five".