124542145 has 16 divisors (see below), whose sum is σ = 183939840. Its totient is φ = 78830784.

The previous prime is 124542139. The next prime is 124542163. The reversal of 124542145 is 541245421.

It is a cyclic number.

It is not a de Polignac number, because 124542145 - 2³ = 124542137 is a prime.

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, 136405 + ... + 137314.

It is an arithmetic number, because the mean of its divisors is an integer number (11496240).

Almost surely, 2^124542145 is an apocalyptic number.

It is an amenable number.

124542145 is a deficient number, since it is larger than the sum of its proper divisors (59397695).

124542145 is a wasteful number, since it uses less digits than its factorization.

124542145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273744.

The product of its digits is 6400, while the sum is 28.

The square root of 124542145 is about 11159.8452050196. The cubic root of 124542145 is about 499.3887797908.

Adding to 124542145 its reverse (541245421), we get a palindrome (665787566).

The spelling of 124542145 in words is "one hundred twenty-four million, five hundred forty-two thousand, one hundred forty-five".