139293 has 32 divisors (see below), whose sum is σ = 261120. Its totient is φ = 71280.

The previous prime is 139291. The next prime is 139297. The reversal of 139293 is 392931.

It is not a de Polignac number, because 139293 - 2¹ = 139291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

139293 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2046 + ... + 2112.

It is an arithmetic number, because the mean of its divisors is an integer number (8160).

2¹³⁹²⁹³ is an apocalyptic number.

It is an amenable number.

139293 is a deficient number, since it is larger than the sum of its proper divisors (121827).

139293 is a wasteful number, since it uses less digits than its factorization.

139293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 88 counting only the distinct ones).

The product of its digits is 1458, while the sum is 27.

The square root of 139293 is about 373.2197743957. The cubic root of 139293 is about 51.8373864852.

It can be divided in two parts, 1392 and 93, that added together give a triangular number (1485 = T₅₄).

The spelling of 139293 in words is "one hundred thirty-nine thousand, two hundred ninety-three".