124921042 has 8 divisors (see below), whose sum is σ = 189237132. Its totient is φ = 61842000.

The previous prime is 124921037. The next prime is 124921091. The reversal of 124921042 is 240129421.

It can be written as a sum of positive squares in 2 ways, for example, as 78694641 + 46226401 = 8871^2 + 6799^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 124920998 and 124921016.

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 3 ways as a sum of consecutive naturals, for example, 309009 + ... + 309412.

Almost surely, 2^124921042 is an apocalyptic number.

124921042 is a deficient number, since it is larger than the sum of its proper divisors (64316090).

124921042 is a wasteful number, since it uses less digits than its factorization.

124921042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618524.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 124921042 is about 11176.8082205968. The cubic root of 124921042 is about 499.8947004923.

The spelling of 124921042 in words is "one hundred twenty-four million, nine hundred twenty-one thousand, forty-two".