11571372 has 18 divisors (see below), whose sum is σ = 29249948. Its totient is φ = 3857112.

The previous prime is 11571349. The next prime is 11571379. The reversal of 11571372 is 27317511.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (11571379) 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, 160678 + ... + 160749.

Almost surely, 2^11571372 is an apocalyptic number.

11571372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11571372 is an abundant number, since it is smaller than the sum of its proper divisors (17678576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11571372 is a wasteful number, since it uses less digits than its factorization.

11571372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321437 (or 321432 counting only the distinct ones).

The product of its digits is 1470, while the sum is 27.

The square root of 11571372 is about 3401.6719418545. The cubic root of 11571372 is about 226.1838637416.

Adding to 11571372 its reverse (27317511), we get a palindrome (38888883).

The spelling of 11571372 in words is "eleven million, five hundred seventy-one thousand, three hundred seventy-two".