145155 has 8 divisors (see below), whose sum is σ = 232272. Its totient is φ = 77408.

The previous prime is 145139. The next prime is 145177. The reversal of 145155 is 551541.

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

It is a cyclic number.

It is not a de Polignac number, because 145155 - 2⁴ = 145139 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145155.

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, 4824 + ... + 4853.

It is an arithmetic number, because the mean of its divisors is an integer number (29034).

2¹⁴⁵¹⁵⁵ is an apocalyptic number.

145155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145155 is a deficient number, since it is larger than the sum of its proper divisors (87117).

145155 is an equidigital number, since it uses as much as digits as its factorization.

145155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9685.

The product of its digits is 500, while the sum is 21.

The square root of 145155 is about 380.9921259029. The cubic root of 145155 is about 52.5545917396.

Adding to 145155 its reverse (551541), we get a palindrome (696696).

It can be divided in two parts, 145 and 155, that added together give a triangular number (300 = T₂₄).

The spelling of 145155 in words is "one hundred forty-five thousand, one hundred fifty-five".