1192220643 has 16 divisors (see below), whose sum is σ = 1610565120. Its totient is φ = 784401696.

The previous prime is 1192220639. The next prime is 1192220647. The reversal of 1192220643 is 3460222911.

It is an interprime number because it is at equal distance from previous prime (1192220639) and next prime (1192220647).

It is not a de Polignac number, because 1192220643 - 2² = 1192220639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1192220643.

It is not an unprimeable number, because it can be changed into a prime (1192220647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79446 + ... + 93252.

It is an arithmetic number, because the mean of its divisors is an integer number (100660320).

Almost surely, 2^1192220643 is an apocalyptic number.

1192220643 is a deficient number, since it is larger than the sum of its proper divisors (418344477).

1192220643 is a wasteful number, since it uses less digits than its factorization.

1192220643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14186.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1192220643 is about 34528.5482318617. The cubic root of 1192220643 is about 1060.3572555732.

The spelling of 1192220643 in words is "one billion, one hundred ninety-two million, two hundred twenty thousand, six hundred forty-three".