155235 has 16 divisors (see below), whose sum is σ = 253440. Its totient is φ = 81120.

The previous prime is 155231. The next prime is 155251. The reversal of 155235 is 532551.

It is a Cunningham number, because it is equal to 394²-1.

It is not a de Polignac number, because 155235 - 2² = 155231 is a prime.

155235 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (155231) 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, 1120 + ... + 1250.

It is an arithmetic number, because the mean of its divisors is an integer number (15840).

2¹⁵⁵²³⁵ is an apocalyptic number.

155235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155235 is a deficient number, since it is larger than the sum of its proper divisors (98205).

155235 is a wasteful number, since it uses less digits than its factorization.

155235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218.

The product of its digits is 750, while the sum is 21.

The square root of 155235 is about 393.9987309624. The cubic root of 155235 is about 53.7439870685.

Adding to 155235 its reverse (532551), we get a palindrome (687786).

The spelling of 155235 in words is "one hundred fifty-five thousand, two hundred thirty-five".