139485 has 16 divisors (see below), whose sum is σ = 236736. Its totient is φ = 69888.

The previous prime is 139483. The next prime is 139487. The reversal of 139485 is 584931.

139485 = T₁₆₂ + T₁₆₃ + ... + T₁₇₁.

It is an interprime number because it is at equal distance from previous prime (139483) and next prime (139487).

It is not a de Polignac number, because 139485 - 2¹ = 139483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19 + ... + 528.

It is an arithmetic number, because the mean of its divisors is an integer number (14796).

2¹³⁹⁴⁸⁵ is an apocalyptic number.

139485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139485 is a deficient number, since it is larger than the sum of its proper divisors (97251).

139485 is a wasteful number, since it uses less digits than its factorization.

139485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572.

The product of its digits is 4320, while the sum is 30.

The square root of 139485 is about 373.4769069166. The cubic root of 139485 is about 51.8611929190.

The spelling of 139485 in words is "one hundred thirty-nine thousand, four hundred eighty-five".