1142700447 has 16 divisors (see below), whose sum is σ = 1781753600. Its totient is φ = 637785792.

The previous prime is 1142700389. The next prime is 1142700457. The reversal of 1142700447 is 7440072411.

It is not a de Polignac number, because 1142700447 - 2¹⁰ = 1142699423 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 (1142700457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631822 + ... + 633627.

It is an arithmetic number, because the mean of its divisors is an integer number (111359600).

Almost surely, 2^1142700447 is an apocalyptic number.

1142700447 is a deficient number, since it is larger than the sum of its proper divisors (639053153).

1142700447 is a wasteful number, since it uses less digits than its factorization.

1142700447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265502.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 1142700447 is about 33803.8525467143. The cubic root of 1142700447 is about 1045.4681317950.

Adding to 1142700447 its reverse (7440072411), we get a palindrome (8582772858).

The spelling of 1142700447 in words is "one billion, one hundred forty-two million, seven hundred thousand, four hundred forty-seven".