11571875 has 36 divisors (see below), whose sum is σ = 17280144. Its totient is φ = 7590000.

The previous prime is 11571851. The next prime is 11571913. The reversal of 11571875 is 57817511.

It is not a de Polignac number, because 11571875 - 2⁶ = 11571811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

Its product of digits (9800) is a multiple of the sum of its prime divisors (35).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 503114 + ... + 503136.

It is an arithmetic number, because the mean of its divisors is an integer number (480004).

Almost surely, 2^11571875 is an apocalyptic number.

11571875 is a deficient number, since it is larger than the sum of its proper divisors (5708269).

11571875 is an frugal number, since it uses more digits than its factorization.

11571875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 35 counting only the distinct ones).

The product of its digits is 9800, while the sum is 35.

The square root of 11571875 is about 3401.7458752823. The cubic root of 11571875 is about 226.1871410492.

Multiplying 11571875 by its sum of digits (35), we get a square (405015625 = 20125²).

11571875 divided by its sum of digits (35) gives a square (330625 = 575²).

It can be divided in two parts, 115 and 71875, that multiplied together give a square (8265625 = 2875²).

The spelling of 11571875 in words is "eleven million, five hundred seventy-one thousand, eight hundred seventy-five".