1242175166 has 8 divisors (see below), whose sum is σ = 1863412560. Its totient is φ = 621037648.

The previous prime is 1242175139. The next prime is 1242175219. The reversal of 1242175166 is 6615712421.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33650 + ... + 60138.

It is an arithmetic number, because the mean of its divisors is an integer number (232926570).

Almost surely, 2^1242175166 is an apocalyptic number.

1242175166 is a deficient number, since it is larger than the sum of its proper divisors (621237394).

1242175166 is a wasteful number, since it uses less digits than its factorization.

1242175166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49938.

The product of its digits is 20160, while the sum is 35.

The square root of 1242175166 is about 35244.5054724846. The cubic root of 1242175166 is about 1074.9648925978.

Adding to 1242175166 its reverse (6615712421), we get a palindrome (7857887587).

The spelling of 1242175166 in words is "one billion, two hundred forty-two million, one hundred seventy-five thousand, one hundred sixty-six".