123142497 has 16 divisors (see below), whose sum is σ = 173807040. Its totient is φ = 77418432.

The previous prime is 123142433. The next prime is 123142501. The reversal of 123142497 is 794241321.

It is not a de Polignac number, because 123142497 - 2⁶ = 123142433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123142417) 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, 12718 + ... + 20199.

It is an arithmetic number, because the mean of its divisors is an integer number (10862940).

Almost surely, 2^123142497 is an apocalyptic number.

It is an amenable number.

123142497 is a deficient number, since it is larger than the sum of its proper divisors (50664543).

123142497 is a wasteful number, since it uses less digits than its factorization.

123142497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32992.

The product of its digits is 12096, while the sum is 33.

The square root of 123142497 is about 11096.9589077368. The cubic root of 123142497 is about 497.5109592461.

The spelling of 123142497 in words is "one hundred twenty-three million, one hundred forty-two thousand, four hundred ninety-seven".