1190643 has 4 divisors (see below), whose sum is σ = 1587528. Its totient is φ = 793760.

The previous prime is 1190639. The next prime is 1190647. The reversal of 1190643 is 3460911.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1190639) and next prime (1190647).

It is a cyclic number.

It is not a de Polignac number, because 1190643 - 2² = 1190639 is a prime.

It is a super-3 number, since 3×1190643³ = 5063676399536333121, which contains 333 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1190647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198438 + ... + 198443.

It is an arithmetic number, because the mean of its divisors is an integer number (396882).

2^1190643 is an apocalyptic number.

1190643 is a deficient number, since it is larger than the sum of its proper divisors (396885).

1190643 is an equidigital number, since it uses as much as digits as its factorization.

1190643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396884.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1190643 is about 1091.1658902293. The cubic root of 1190643 is about 105.9889332222.

The spelling of 1190643 in words is "one million, one hundred ninety thousand, six hundred forty-three".