124780142 has 4 divisors (see below), whose sum is σ = 187170216. Its totient is φ = 62390070.

The previous prime is 124780111. The next prime is 124780151. The reversal of 124780142 is 241087421.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31195034 + ... + 31195037.

It is an arithmetic number, because the mean of its divisors is an integer number (46792554).

Almost surely, 2^124780142 is an apocalyptic number.

124780142 is a deficient number, since it is larger than the sum of its proper divisors (62390074).

124780142 is an equidigital number, since it uses as much as digits as its factorization.

124780142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62390073.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 124780142 is about 11170.5032115836. The cubic root of 124780142 is about 499.7066839651.

The spelling of 124780142 in words is "one hundred twenty-four million, seven hundred eighty thousand, one hundred forty-two".