139466 has 8 divisors (see below), whose sum is σ = 211140. Its totient is φ = 69088.

The previous prime is 139459. The next prime is 139483. The reversal of 139466 is 664931.

It can be written as a sum of positive squares in 2 ways, for example, as 133225 + 6241 = 365^2 + 79^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

Its product of digits (3888) is a multiple of the sum of its prime divisors (648).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139466.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20 + ... + 528.

2¹³⁹⁴⁶⁶ is an apocalyptic number.

139466 is a deficient number, since it is larger than the sum of its proper divisors (71674).

139466 is a wasteful number, since it uses less digits than its factorization.

139466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648.

The product of its digits is 3888, while the sum is 29.

The square root of 139466 is about 373.4514694040. The cubic root of 139466 is about 51.8588380484.

The spelling of 139466 in words is "one hundred thirty-nine thousand, four hundred sixty-six".