124539445 has 4 divisors (see below), whose sum is σ = 149447340. Its totient is φ = 99631552.

The previous prime is 124539421. The next prime is 124539451. The reversal of 124539445 is 544935421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544935421 = 83 ⋅6565487.

It can be written as a sum of positive squares in 2 ways, for example, as 35916049 + 88623396 = 5993^2 + 9414^2 .

It is a cyclic number.

It is not a de Polignac number, because 124539445 - 2²¹ = 122442293 is a prime.

It is a congruent number.

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, 12453940 + ... + 12453949.

It is an arithmetic number, because the mean of its divisors is an integer number (37361835).

Almost surely, 2^124539445 is an apocalyptic number.

It is an amenable number.

124539445 is a deficient number, since it is larger than the sum of its proper divisors (24907895).

124539445 is an equidigital number, since it uses as much as digits as its factorization.

124539445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24907894.

The product of its digits is 86400, while the sum is 37.

The square root of 124539445 is about 11159.7242349442. The cubic root of 124539445 is about 499.3851709470.

The spelling of 124539445 in words is "one hundred twenty-four million, five hundred thirty-nine thousand, four hundred forty-five".