139954 has 16 divisors (see below), whose sum is σ = 230400. Its totient is φ = 63504.

The previous prime is 139943. The next prime is 139967. The reversal of 139954 is 459931.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039 + ... + 1165.

It is an arithmetic number, because the mean of its divisors is an integer number (14400).

2¹³⁹⁹⁵⁴ is an apocalyptic number.

139954 is a deficient number, since it is larger than the sum of its proper divisors (90446).

139954 is a wasteful number, since it uses less digits than its factorization.

139954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177.

The product of its digits is 4860, while the sum is 31.

The square root of 139954 is about 374.1042635416. The cubic root of 139954 is about 51.9192533782.

The spelling of 139954 in words is "one hundred thirty-nine thousand, nine hundred fifty-four".