139464 has 48 divisors (see below), whose sum is σ = 409500. Its totient is φ = 42624.

The previous prime is 139459. The next prime is 139483. The reversal of 139464 is 464931.

It can be written as a sum of positive squares in 2 ways, for example, as 116964 + 22500 = 342^2 + 150^2 .

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

139464 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 862 + ... + 1010.

2¹³⁹⁴⁶⁴ 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 139464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204750).

139464 is an abundant number, since it is smaller than the sum of its proper divisors (270036).

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

139464 is a wasteful number, since it uses less digits than its factorization.

139464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 167 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 139464 is about 373.4487916703. The cubic root of 139464 is about 51.8585901548.

The spelling of 139464 in words is "one hundred thirty-nine thousand, four hundred sixty-four".