1142310247 has 8 divisors (see below), whose sum is σ = 1239161616. Its totient is φ = 1046741952.

The previous prime is 1142310173. The next prime is 1142310251. The reversal of 1142310247 is 7420132411.

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

It is a cyclic number.

It is not a de Polignac number, because 1142310247 - 2¹¹ = 1142308199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142310947) 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 7 ways as a sum of consecutive naturals, for example, 318913 + ... + 322474.

It is an arithmetic number, because the mean of its divisors is an integer number (154895202).

Almost surely, 2^1142310247 is an apocalyptic number.

1142310247 is a deficient number, since it is larger than the sum of its proper divisors (96851369).

1142310247 is a wasteful number, since it uses less digits than its factorization.

1142310247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641537.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1142310247 is about 33798.0805224202. The cubic root of 1142310247 is about 1045.3491189460.

Adding to 1142310247 its reverse (7420132411), we get a palindrome (8562442658).

The spelling of 1142310247 in words is "one billion, one hundred forty-two million, three hundred ten thousand, two hundred forty-seven".