1364581 has 2 divisors, whose sum is σ = 1364582. Its totient is φ = 1364580.

The previous prime is 1364569. The next prime is 1364609. The reversal of 1364581 is 1854631.

It is an a-pointer prime, because the next prime (1364609) can be obtained adding 1364581 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1083681 + 280900 = 1041^2 + 530^2 .

It is a cyclic number.

It is not a de Polignac number, because 1364581 - 2⁷ = 1364453 is a prime.

It is a super-2 number, since 2×1364581² = 3724162611122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1364381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682290 + 682291.

It is an arithmetic number, because the mean of its divisors is an integer number (682291).

2^1364581 is an apocalyptic number.

It is an amenable number.

1364581 is a deficient number, since it is larger than the sum of its proper divisors (1).

1364581 is an equidigital number, since it uses as much as digits as its factorization.

1364581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 28.

The square root of 1364581 is about 1168.1528153457. The cubic root of 1364581 is about 110.9174236367.

The spelling of 1364581 in words is "one million, three hundred sixty-four thousand, five hundred eighty-one".