1494391 has 2 divisors, whose sum is σ = 1494392. Its totient is φ = 1494390.

The previous prime is 1494377. The next prime is 1494401. The reversal of 1494391 is 1934941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1494391 - 2⁵ = 1494359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1494371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747195 + 747196.

It is an arithmetic number, because the mean of its divisors is an integer number (747196).

2^1494391 is an apocalyptic number.

1494391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1494391 is an equidigital number, since it uses as much as digits as its factorization.

1494391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 1494391 is about 1222.4528620769. The cubic root of 1494391 is about 114.3285637686.

The spelling of 1494391 in words is "one million, four hundred ninety-four thousand, three hundred ninety-one".