139773 has 4 divisors (see below), whose sum is σ = 186368. Its totient is φ = 93180.

The previous prime is 139759. The next prime is 139787. The reversal of 139773 is 377931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (139759) and next prime (139787).

It is not a de Polignac number, because 139773 - 2⁶ = 139709 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139703) 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, 23293 + ... + 23298.

It is an arithmetic number, because the mean of its divisors is an integer number (46592).

2¹³⁹⁷⁷³ is an apocalyptic number.

It is an amenable number.

139773 is a deficient number, since it is larger than the sum of its proper divisors (46595).

139773 is an equidigital number, since it uses as much as digits as its factorization.

139773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46594.

The product of its digits is 3969, while the sum is 30.

The square root of 139773 is about 373.8622741064. The cubic root of 139773 is about 51.8968616425.

The spelling of 139773 in words is "one hundred thirty-nine thousand, seven hundred seventy-three".