1418257 has 2 divisors, whose sum is σ = 1418258. Its totient is φ = 1418256.

The previous prime is 1418251. The next prime is 1418267. The reversal of 1418257 is 7528141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1164241 + 254016 = 1079^2 + 504^2 .

It is an emirp because it is prime and its reverse (7528141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1418257 - 2¹¹ = 1416209 is a prime.

It is a super-2 number, since 2×1418257² = 4022905836098, which contains 22 as substring.

1418257 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1418251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 709128 + 709129.

It is an arithmetic number, because the mean of its divisors is an integer number (709129).

2^1418257 is an apocalyptic number.

It is an amenable number.

1418257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1418257 is an equidigital number, since it uses as much as digits as its factorization.

1418257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2240, while the sum is 28.

The square root of 1418257 is about 1190.9059576642. The cubic root of 1418257 is about 112.3530789918.

The spelling of 1418257 in words is "one million, four hundred eighteen thousand, two hundred fifty-seven".