124666442 has 4 divisors (see below), whose sum is σ = 186999666. Its totient is φ = 62333220.

The previous prime is 124666433. The next prime is 124666453. The reversal of 124666442 is 244666421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244666421 = 1601 ⋅152821.

It can be written as a sum of positive squares in only one way, i.e., 123854641 + 811801 = 11129^2 + 901^2 .

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 as a sum of consecutive naturals, namely, 31166609 + ... + 31166612.

Almost surely, 2^124666442 is an apocalyptic number.

124666442 is a deficient number, since it is larger than the sum of its proper divisors (62333224).

124666442 is an equidigital number, since it uses as much as digits as its factorization.

124666442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62333223.

The product of its digits is 55296, while the sum is 35.

The square root of 124666442 is about 11165.4127554695. The cubic root of 124666442 is about 499.5548598180.

The spelling of 124666442 in words is "one hundred twenty-four million, six hundred sixty-six thousand, four hundred forty-two".