139572 has 18 divisors (see below), whose sum is σ = 352898. Its totient is φ = 46512.

The previous prime is 139571. The next prime is 139589. The reversal of 139572 is 275931.

139572 is nontrivially palindromic in base 13.

It can be written as a sum of positive squares in only one way, i.e., 104976 + 34596 = 324^2 + 186^2 .

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139572.

It is not an unprimeable number, because it can be changed into a prime (139571) 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, 1903 + ... + 1974.

2¹³⁹⁵⁷² is an apocalyptic number.

139572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139572 is an abundant number, since it is smaller than the sum of its proper divisors (213326).

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

139572 is a wasteful number, since it uses less digits than its factorization.

139572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3887 (or 3882 counting only the distinct ones).

The product of its digits is 1890, while the sum is 27.

The square root of 139572 is about 373.5933618254. The cubic root of 139572 is about 51.8719730174.

The spelling of 139572 in words is "one hundred thirty-nine thousand, five hundred seventy-two".