11572471 has 4 divisors (see below), whose sum is σ = 11731072. Its totient is φ = 11413872.

The previous prime is 11572469. The next prime is 11572487. The reversal of 11572471 is 17427511.

11572471 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17427511 = 953 ⋅18287.

It is a cyclic number.

It is not a de Polignac number, because 11572471 - 2¹ = 11572469 is a prime.

It is a super-3 number, since 3×11572471³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11572271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79191 + ... + 79336.

It is an arithmetic number, because the mean of its divisors is an integer number (2932768).

Almost surely, 2^11572471 is an apocalyptic number.

11572471 is a deficient number, since it is larger than the sum of its proper divisors (158601).

11572471 is an equidigital number, since it uses as much as digits as its factorization.

11572471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158600.

The product of its digits is 1960, while the sum is 28.

The square root of 11572471 is about 3401.8334762301. The cubic root of 11572471 is about 226.1910241774.

Adding to 11572471 its reverse (17427511), we get a palindrome (28999982).

The spelling of 11572471 in words is "eleven million, five hundred seventy-two thousand, four hundred seventy-one".