11571741 has 40 divisors (see below), whose sum is σ = 18624320. Its totient is φ = 7138368.

The previous prime is 11571733. The next prime is 11571743. The reversal of 11571741 is 14717511.

It is not a de Polignac number, because 11571741 - 2³ = 11571733 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11571743) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 112296 + ... + 112398.

It is an arithmetic number, because the mean of its divisors is an integer number (465608).

Almost surely, 2^11571741 is an apocalyptic number.

It is an amenable number.

11571741 is a deficient number, since it is larger than the sum of its proper divisors (7052579).

11571741 is a wasteful number, since it uses less digits than its factorization.

11571741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 198 counting only the distinct ones).

The product of its digits is 980, while the sum is 27.

The square root of 11571741 is about 3401.7261794565. The cubic root of 11571741 is about 226.1862679785.

The spelling of 11571741 in words is "eleven million, five hundred seventy-one thousand, seven hundred forty-one".