1424681 has 2 divisors, whose sum is σ = 1424682. Its totient is φ = 1424680.

The previous prime is 1424659. The next prime is 1424699. The reversal of 1424681 is 1864241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 912025 + 512656 = 955^2 + 716^2 .

It is an emirp because it is prime and its reverse (1864241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1424681 - 2¹⁸ = 1162537 is a prime.

It is a super-2 number, since 2×1424681² = 4059431903522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1424681.

It is not a weakly prime, because it can be changed into another prime (1424581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712340 + 712341.

It is an arithmetic number, because the mean of its divisors is an integer number (712341).

2^1424681 is an apocalyptic number.

It is an amenable number.

1424681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1424681 is an equidigital number, since it uses as much as digits as its factorization.

1424681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 26.

The square root of 1424681 is about 1193.6000167560. The cubic root of 1424681 is about 112.5224580679.

The spelling of 1424681 in words is "one million, four hundred twenty-four thousand, six hundred eighty-one".