1142807427 has 8 divisors (see below), whose sum is σ = 1693048080. Its totient is φ = 761871600.

The previous prime is 1142807423. The next prime is 1142807461. The reversal of 1142807427 is 7247082411.

It is not a de Polignac number, because 1142807427 - 2² = 1142807423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1142807391 and 1142807400.

It is not an unprimeable number, because it can be changed into a prime (1142807423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21163074 + ... + 21163127.

It is an arithmetic number, because the mean of its divisors is an integer number (211631010).

Almost surely, 2^1142807427 is an apocalyptic number.

1142807427 is a deficient number, since it is larger than the sum of its proper divisors (550240653).

1142807427 is an equidigital number, since it uses as much as digits as its factorization.

1142807427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42326210 (or 42326204 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 1142807427 is about 33805.4348737004. The cubic root of 1142807427 is about 1045.5007564696.

Adding to 1142807427 its reverse (7247082411), we get a palindrome (8389889838).

The spelling of 1142807427 in words is "one billion, one hundred forty-two million, eight hundred seven thousand, four hundred twenty-seven".