1494557 has 2 divisors, whose sum is σ = 1494558. Its totient is φ = 1494556.

The previous prime is 1494539. The next prime is 1494583. The reversal of 1494557 is 7554941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1378276 + 116281 = 1174^2 + 341^2 .

It is an emirp because it is prime and its reverse (7554941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1494557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1494257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747278 + 747279.

It is an arithmetic number, because the mean of its divisors is an integer number (747279).

2^1494557 is an apocalyptic number.

It is an amenable number.

1494557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1494557 is an equidigital number, since it uses as much as digits as its factorization.

1494557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 35.

The square root of 1494557 is about 1222.5207564700. The cubic root of 1494557 is about 114.3327968952.

The spelling of 1494557 in words is "one million, four hundred ninety-four thousand, five hundred fifty-seven".