124809245 has 16 divisors (see below), whose sum is σ = 163823040. Its totient is φ = 90528000.

The previous prime is 124809211. The next prime is 124809277. The reversal of 124809245 is 542908421.

It is not a de Polignac number, because 124809245 - 2¹⁶ = 124743709 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19226 + ... + 24884.

It is an arithmetic number, because the mean of its divisors is an integer number (10238940).

Almost surely, 2^124809245 is an apocalyptic number.

It is an amenable number.

124809245 is a deficient number, since it is larger than the sum of its proper divisors (39013795).

124809245 is a wasteful number, since it uses less digits than its factorization.

124809245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6076.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 124809245 is about 11171.8058074780. The cubic root of 124809245 is about 499.7455305125.

The spelling of 124809245 in words is "one hundred twenty-four million, eight hundred nine thousand, two hundred forty-five".