123542315 has 32 divisors (see below), whose sum is σ = 176432256. Its totient is φ = 82114560.

The previous prime is 123542299. The next prime is 123542317. The reversal of 123542315 is 513245321.

It is a happy number.

It is not a de Polignac number, because 123542315 - 2⁴ = 123542299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123542317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22985 + ... + 27845.

It is an arithmetic number, because the mean of its divisors is an integer number (5513508).

Almost surely, 2^123542315 is an apocalyptic number.

123542315 is a deficient number, since it is larger than the sum of its proper divisors (52889941).

123542315 is a wasteful number, since it uses less digits than its factorization.

123542315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4919.

The product of its digits is 3600, while the sum is 26.

The square root of 123542315 is about 11114.9590642521. The cubic root of 123542315 is about 498.0488156639.

Adding to 123542315 its reverse (513245321), we get a palindrome (636787636).

The spelling of 123542315 in words is "one hundred twenty-three million, five hundred forty-two thousand, three hundred fifteen".