1491179 has 2 divisors, whose sum is σ = 1491180. Its totient is φ = 1491178.

The previous prime is 1491157. The next prime is 1491199. The reversal of 1491179 is 9711941.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9711941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1491179 is a prime.

It is a super-2 number, since 2×1491179² = 4447229620082, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1491109) 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 as a sum of consecutive naturals, namely, 745589 + 745590.

It is an arithmetic number, because the mean of its divisors is an integer number (745590).

2^1491179 is an apocalyptic number.

1491179 is a deficient number, since it is larger than the sum of its proper divisors (1).

1491179 is an equidigital number, since it uses as much as digits as its factorization.

1491179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 32.

The square root of 1491179 is about 1221.1384032942. The cubic root of 1491179 is about 114.2465935299.

The spelling of 1491179 in words is "one million, four hundred ninety-one thousand, one hundred seventy-nine".