156135 has 16 divisors (see below), whose sum is σ = 285696. Its totient is φ = 71328.

The previous prime is 156131. The next prime is 156139. The reversal of 156135 is 531651.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (156131) and next prime (156139).

It is not a de Polignac number, because 156135 - 2² = 156131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

156135 is a lucky number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156131) 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, 639 + ... + 848.

It is an arithmetic number, because the mean of its divisors is an integer number (17856).

2¹⁵⁶¹³⁵ is an apocalyptic number.

156135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

156135 is a deficient number, since it is larger than the sum of its proper divisors (129561).

156135 is a wasteful number, since it uses less digits than its factorization.

156135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502.

The product of its digits is 450, while the sum is 21.

The square root of 156135 is about 395.1392159733. The cubic root of 156135 is about 53.8476501416.

Adding to 156135 its reverse (531651), we get a palindrome (687786).

It can be divided in two parts, 1561 and 35, that added together give a triangular number (1596 = T₅₆).

The spelling of 156135 in words is "one hundred fifty-six thousand, one hundred thirty-five".