101390875 has 8 divisors (see below), whose sum is σ = 126535968. Its totient is φ = 81112600.

The previous prime is 101390857. The next prime is 101390879. The reversal of 101390875 is 578093101.

It is a happy number.

It is not a de Polignac number, because 101390875 - 2⁵ = 101390843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101390875.

It is not an unprimeable number, because it can be changed into a prime (101390879) 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, 405439 + ... + 405688.

It is an arithmetic number, because the mean of its divisors is an integer number (15816996).

Almost surely, 2^101390875 is an apocalyptic number.

101390875 is a deficient number, since it is larger than the sum of its proper divisors (25145093).

101390875 is an frugal number, since it uses more digits than its factorization.

101390875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811142 (or 811132 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 101390875 is about 10069.3036005476. The cubic root of 101390875 is about 466.3009393609.

The spelling of 101390875 in words is "one hundred one million, three hundred ninety thousand, eight hundred seventy-five".