1190491 has 2 divisors, whose sum is σ = 1190492. Its totient is φ = 1190490.

The previous prime is 1190489. The next prime is 1190507. The reversal of 1190491 is 1940911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1190491 - 2¹ = 1190489 is a prime.

Together with 1190489, it forms a pair of twin primes.

It is an Ulam number.

1190491 is a lucky 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, 595245 + 595246.

It is an arithmetic number, because the mean of its divisors is an integer number (595246).

2^1190491 is an apocalyptic number.

1190491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1190491 is an equidigital number, since it uses as much as digits as its factorization.

1190491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 1190491 is about 1091.0962377352. The cubic root of 1190491 is about 105.9844227733.

It can be divided in two parts, 1190 and 491, that added together give a square (1681 = 41²).

The spelling of 1190491 in words is "one million, one hundred ninety thousand, four hundred ninety-one".