1242041125 has 32 divisors (see below), whose sum is σ = 1673249760. Its totient is φ = 915033600.

The previous prime is 1242041113. The next prime is 1242041159. The reversal of 1242041125 is 5211402421.

It can be written as a sum of positive squares in 16 ways, for example, as 970384801 + 271656324 = 31151^2 + 16482^2 .

It is not a de Polignac number, because 1242041125 - 2⁷ = 1242040997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1242041096 and 1242041105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1099561 + ... + 1100689.

It is an arithmetic number, because the mean of its divisors is an integer number (52289055).

Almost surely, 2^1242041125 is an apocalyptic number.

It is an amenable number.

1242041125 is a deficient number, since it is larger than the sum of its proper divisors (431208635).

1242041125 is a wasteful number, since it uses less digits than its factorization.

1242041125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1242041125 is about 35242.6038339961. The cubic root of 1242041125 is about 1074.9262253319.

Adding to 1242041125 its reverse (5211402421), we get a palindrome (6453443546).

The spelling of 1242041125 in words is "one billion, two hundred forty-two million, forty-one thousand, one hundred twenty-five".