139492 has 12 divisors (see below), whose sum is σ = 250096. Its totient is φ = 68040.

The previous prime is 139487. The next prime is 139493. The reversal of 139492 is 294931.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 139492.

It is not an unprimeable number, because it can be changed into a prime (139493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234 + ... + 577.

2¹³⁹⁴⁹² is an apocalyptic number.

It is an amenable number.

139492 is a deficient number, since it is larger than the sum of its proper divisors (110604).

139492 is a wasteful number, since it uses less digits than its factorization.

139492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858 (or 856 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

The square root of 139492 is about 373.4862781951. The cubic root of 139492 is about 51.8620604491.

It can be divided in two parts, 1 and 39492, that added together give a palindrome (39493).

The spelling of 139492 in words is "one hundred thirty-nine thousand, four hundred ninety-two".