139554 has 12 divisors (see below), whose sum is σ = 302406. Its totient is φ = 46512.

The previous prime is 139547. The next prime is 139571. The reversal of 139554 is 455931.

139554 is nontrivially palindromic in base 4 and base 16.

It can be written as a sum of positive squares in only one way, i.e., 74529 + 65025 = 273^2 + 255^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139554.

It is an unprimeable number.

139554 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 5 ways as a sum of consecutive naturals, for example, 3859 + ... + 3894.

2¹³⁹⁵⁵⁴ is an apocalyptic number.

139554 is an abundant number, since it is smaller than the sum of its proper divisors (162852).

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

139554 is a wasteful number, since it uses less digits than its factorization.

139554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7761 (or 7758 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 139554 is about 373.5692706848. The cubic root of 139554 is about 51.8697430198.

The spelling of 139554 in words is "one hundred thirty-nine thousand, five hundred fifty-four".