101988275 has 6 divisors (see below), whose sum is σ = 126465492. Its totient is φ = 81590600.

The previous prime is 101988259. The next prime is 101988277. The reversal of 101988275 is 572889101.

It is not a de Polignac number, because 101988275 - 2⁴ = 101988259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101988277) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2039741 + ... + 2039790.

It is an arithmetic number, because the mean of its divisors is an integer number (21077582).

Almost surely, 2^101988275 is an apocalyptic number.

101988275 is a deficient number, since it is larger than the sum of its proper divisors (24477217).

101988275 is an equidigital number, since it uses as much as digits as its factorization.

101988275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4079541 (or 4079536 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 101988275 is about 10098.9244476825. The cubic root of 101988275 is about 467.2149691906.

The spelling of 101988275 in words is "one hundred one million, nine hundred eighty-eight thousand, two hundred seventy-five".