139754 has 4 divisors (see below), whose sum is σ = 209634. Its totient is φ = 69876.

The previous prime is 139753. The next prime is 139759. The reversal of 139754 is 457931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 457931 = 173 ⋅2647.

It can be written as a sum of positive squares in only one way, i.e., 139129 + 625 = 373^2 + 25^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139754.

It is not an unprimeable number, because it can be changed into a prime (139753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34937 + ... + 34940.

2¹³⁹⁷⁵⁴ is an apocalyptic number.

139754 is a deficient number, since it is larger than the sum of its proper divisors (69880).

139754 is an equidigital number, since it uses as much as digits as its factorization.

139754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69879.

The product of its digits is 3780, while the sum is 29.

The square root of 139754 is about 373.8368628159. The cubic root of 139754 is about 51.8945100079.

The spelling of 139754 in words is "one hundred thirty-nine thousand, seven hundred fifty-four".