139672 has 32 divisors (see below), whose sum is σ = 302400. Its totient is φ = 59904.

The previous prime is 139663. The next prime is 139681. The reversal of 139672 is 276931.

It is an interprime number because it is at equal distance from previous prime (139663) and next prime (139681).

It is a self number, because there is not a number n which added to its sum of digits gives 139672.

It is a congruent number.

It is an unprimeable number.

139672 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 7 ways as a sum of consecutive naturals, for example, 1729 + ... + 1807.

It is an arithmetic number, because the mean of its divisors is an integer number (9450).

2¹³⁹⁶⁷² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151200).

139672 is an abundant number, since it is smaller than the sum of its proper divisors (162728).

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

139672 is a wasteful number, since it uses less digits than its factorization.

139672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 111 counting only the distinct ones).

The product of its digits is 2268, while the sum is 28.

The square root of 139672 is about 373.7271732160. The cubic root of 139672 is about 51.8843584026.

The spelling of 139672 in words is "one hundred thirty-nine thousand, six hundred seventy-two".