123432545 has 8 divisors (see below), whose sum is σ = 152897280. Its totient is φ = 95560560.

The previous prime is 123432541. The next prime is 123432553. The reversal of 123432545 is 545234321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123432545 - 2² = 123432541 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (123432541) 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, 398015 + ... + 398324.

It is an arithmetic number, because the mean of its divisors is an integer number (19112160).

Almost surely, 2^123432545 is an apocalyptic number.

It is an amenable number.

123432545 is a deficient number, since it is larger than the sum of its proper divisors (29464735).

123432545 is an equidigital number, since it uses as much as digits as its factorization.

123432545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796375.

The product of its digits is 14400, while the sum is 29.

The square root of 123432545 is about 11110.0200269846. The cubic root of 123432545 is about 497.9012629312.

Adding to 123432545 its reverse (545234321), we get a palindrome (668666866).

The spelling of 123432545 in words is "one hundred twenty-three million, four hundred thirty-two thousand, five hundred forty-five".