139155 has 8 divisors (see below), whose sum is σ = 222672. Its totient is φ = 74208.

The previous prime is 139133. The next prime is 139169. The reversal of 139155 is 551931.

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

It is not a de Polignac number, because 139155 - 2⁵ = 139123 is a prime.

It is a super-2 number, since 2×139155² = 38728228050, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139155.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4624 + ... + 4653.

It is an arithmetic number, because the mean of its divisors is an integer number (27834).

2¹³⁹¹⁵⁵ is an apocalyptic number.

139155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139155 is a deficient number, since it is larger than the sum of its proper divisors (83517).

139155 is an equidigital number, since it uses as much as digits as its factorization.

139155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9285.

The product of its digits is 675, while the sum is 24.

The square root of 139155 is about 373.0348509188. The cubic root of 139155 is about 51.8202620951.

The spelling of 139155 in words is "one hundred thirty-nine thousand, one hundred fifty-five".