191572 has 12 divisors (see below), whose sum is σ = 342720. Its totient is φ = 93656.

The previous prime is 191563. The next prime is 191579. The reversal of 191572 is 275191.

191572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191579) by changing a digit.

191572 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322 + ... + 697.

It is an arithmetic number, because the mean of its divisors is an integer number (28560).

2¹⁹¹⁵⁷² is an apocalyptic number.

It is an amenable number.

191572 is a deficient number, since it is larger than the sum of its proper divisors (151148).

191572 is a wasteful number, since it uses less digits than its factorization.

191572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070 (or 1068 counting only the distinct ones).

The product of its digits is 630, while the sum is 25.

The square root of 191572 is about 437.6893875798. The cubic root of 191572 is about 57.6470840581.

The spelling of 191572 in words is "one hundred ninety-one thousand, five hundred seventy-two".