1192991 has 8 divisors (see below), whose sum is σ = 1290480. Its totient is φ = 1099008.

The previous prime is 1192969. The next prime is 1193011. The reversal of 1192991 is 1992911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1192991 - 2⁶ = 1192927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1192951) 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, 146 + ... + 1551.

It is an arithmetic number, because the mean of its divisors is an integer number (161310).

2^1192991 is an apocalyptic number.

1192991 is a deficient number, since it is larger than the sum of its proper divisors (97489).

1192991 is a wasteful number, since it uses less digits than its factorization.

1192991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753.

The product of its digits is 1458, while the sum is 32.

The square root of 1192991 is about 1092.2412737120. The cubic root of 1192991 is about 106.0585590757.

The spelling of 1192991 in words is "one million, one hundred ninety-two thousand, nine hundred ninety-one".