124124545 has 4 divisors (see below), whose sum is σ = 148949460. Its totient is φ = 99299632.

The previous prime is 124124519. The next prime is 124124621. The reversal of 124124545 is 545421421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58384881 + 65739664 = 7641^2 + 8108^2 .

It is a cyclic number.

It is not a de Polignac number, because 124124545 - 2⁷ = 124124417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12412450 + ... + 12412459.

It is an arithmetic number, because the mean of its divisors is an integer number (37237365).

Almost surely, 2^124124545 is an apocalyptic number.

It is an amenable number.

124124545 is a deficient number, since it is larger than the sum of its proper divisors (24824915).

124124545 is an equidigital number, since it uses as much as digits as its factorization.

124124545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24824914.

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

The square root of 124124545 is about 11141.1195577464. The cubic root of 124124545 is about 498.8299909599.

Adding to 124124545 its reverse (545421421), we get a palindrome (669545966).

The spelling of 124124545 in words is "one hundred twenty-four million, one hundred twenty-four thousand, five hundred forty-five".