1190591 has 2 divisors, whose sum is σ = 1190592. Its totient is φ = 1190590.

The previous prime is 1190587. The next prime is 1190611. The reversal of 1190591 is 1950911.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1190591 - 2² = 1190587 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1190591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1190291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 595295 + 595296.

It is an arithmetic number, because the mean of its divisors is an integer number (595296).

2^1190591 is an apocalyptic number.

1190591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1190591 is an equidigital number, since it uses as much as digits as its factorization.

1190591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405, while the sum is 26.

The square root of 1190591 is about 1091.1420622449. The cubic root of 1190591 is about 105.9873902171.

The spelling of 1190591 in words is "one million, one hundred ninety thousand, five hundred ninety-one".