123165434 has 16 divisors (see below), whose sum is σ = 211336128. Its totient is φ = 52736352.

The previous prime is 123165421. The next prime is 123165439. The reversal of 123165434 is 434561321.

It is a junction number, because it is equal to n+sod(n) for n = 123165397 and 123165406.

It is not an unprimeable number, because it can be changed into a prime (123165439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14534 + ... + 21390.

It is an arithmetic number, because the mean of its divisors is an integer number (13208508).

Almost surely, 2^123165434 is an apocalyptic number.

123165434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

123165434 is a deficient number, since it is larger than the sum of its proper divisors (88170694).

123165434 is a wasteful number, since it uses less digits than its factorization.

123165434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8149.

The product of its digits is 8640, while the sum is 29.

The square root of 123165434 is about 11097.9923409597. The cubic root of 123165434 is about 497.5418467700.

The spelling of 123165434 in words is "one hundred twenty-three million, one hundred sixty-five thousand, four hundred thirty-four".