145655 has 4 divisors (see below), whose sum is σ = 174792. Its totient is φ = 116520.

The previous prime is 145643. The next prime is 145661. The reversal of 145655 is 556541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 556541 = 173 ⋅3217.

It is not a de Polignac number, because 145655 - 2⁸ = 145399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145655.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14561 + ... + 14570.

It is an arithmetic number, because the mean of its divisors is an integer number (43698).

2¹⁴⁵⁶⁵⁵ is an apocalyptic number.

145655 is a deficient number, since it is larger than the sum of its proper divisors (29137).

145655 is an equidigital number, since it uses as much as digits as its factorization.

145655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29136.

The product of its digits is 3000, while the sum is 26.

The square root of 145655 is about 381.6477433446. The cubic root of 145655 is about 52.6148656581.

The spelling of 145655 in words is "one hundred forty-five thousand, six hundred fifty-five".