123532115 has 32 divisors (see below), whose sum is σ = 180486144. Its totient is φ = 79234560.

The previous prime is 123532111. The next prime is 123532147. The reversal of 123532115 is 511235321.

It is a happy number.

It is not a de Polignac number, because 123532115 - 2² = 123532111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123532111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113102 + ... + 114188.

It is an arithmetic number, because the mean of its divisors is an integer number (5640192).

Almost surely, 2^123532115 is an apocalyptic number.

123532115 is a deficient number, since it is larger than the sum of its proper divisors (56954029).

123532115 is a wasteful number, since it uses less digits than its factorization.

123532115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307.

The product of its digits is 900, while the sum is 23.

The square root of 123532115 is about 11114.5002136848. The cubic root of 123532115 is about 498.0351085177.

Adding to 123532115 its reverse (511235321), we get a palindrome (634767436).

It can be divided in two parts, 12353211 and 5, that multiplied together give a triangular number (61766055 = T₁₁₁₁₄).

The spelling of 123532115 in words is "one hundred twenty-three million, five hundred thirty-two thousand, one hundred fifteen".