123542465 has 16 divisors (see below), whose sum is σ = 161438400. Its totient is φ = 90401472.

The previous prime is 123542459. The next prime is 123542477. The reversal of 123542465 is 564245321.

It is a cyclic number.

It is not a de Polignac number, because 123542465 - 2¹² = 123538369 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19667 + ... + 25176.

It is an arithmetic number, because the mean of its divisors is an integer number (10089900).

Almost surely, 2^123542465 is an apocalyptic number.

It is an amenable number.

123542465 is a deficient number, since it is larger than the sum of its proper divisors (37895935).

123542465 is a wasteful number, since it uses less digits than its factorization.

123542465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44896.

The product of its digits is 28800, while the sum is 32.

The square root of 123542465 is about 11114.9658119132. The cubic root of 123542465 is about 498.0490172339.

Adding to 123542465 its reverse (564245321), we get a palindrome (687787786).

The spelling of 123542465 in words is "one hundred twenty-three million, five hundred forty-two thousand, four hundred sixty-five".