1242052263 has 6 divisors (see below), whose sum is σ = 1794075504. Its totient is φ = 828034836.

The previous prime is 1242052241. The next prime is 1242052271. The reversal of 1242052263 is 3622502421.

It is a happy number.

1242052263 is a `hidden beast` number, since 12 + 420 + 5 + 226 + 3 = 666.

It is not a de Polignac number, because 1242052263 - 2⁶ = 1242052199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242002263) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 69002895 + ... + 69002912.

It is an arithmetic number, because the mean of its divisors is an integer number (299012584).

Almost surely, 2^1242052263 is an apocalyptic number.

1242052263 is a deficient number, since it is larger than the sum of its proper divisors (552023241).

1242052263 is a wasteful number, since it uses less digits than its factorization.

1242052263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138005813 (or 138005810 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1242052263 is about 35242.7618526131. The cubic root of 1242052263 is about 1074.9294384549.

Adding to 1242052263 its reverse (3622502421), we get a palindrome (4864554684).

The spelling of 1242052263 in words is "one billion, two hundred forty-two million, fifty-two thousand, two hundred sixty-three".