1142342223 has 16 divisors (see below), whose sum is σ = 1670777472. Its totient is φ = 688500000.

The previous prime is 1142342207. The next prime is 1142342233. The reversal of 1142342223 is 3222432411.

It is a happy number.

It is not a de Polignac number, because 1142342223 - 2⁴ = 1142342207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1142342193 and 1142342202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142342233) 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 15 ways as a sum of consecutive naturals, for example, 89653 + ... + 101598.

It is an arithmetic number, because the mean of its divisors is an integer number (104423592).

Almost surely, 2^1142342223 is an apocalyptic number.

1142342223 is a deficient number, since it is larger than the sum of its proper divisors (528435249).

1142342223 is a wasteful number, since it uses less digits than its factorization.

1142342223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191446.

The product of its digits is 2304, while the sum is 24.

The square root of 1142342223 is about 33798.5535637252. The cubic root of 1142342223 is about 1045.3588727969.

Adding to 1142342223 its reverse (3222432411), we get a palindrome (4364774634).

The spelling of 1142342223 in words is "one billion, one hundred forty-two million, three hundred forty-two thousand, two hundred twenty-three".