1345481 has 2 divisors, whose sum is σ = 1345482. Its totient is φ = 1345480.

The previous prime is 1345471. The next prime is 1345507. The reversal of 1345481 is 1845431.

It is an a-pointer prime, because the next prime (1345507) can be obtained adding 1345481 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1229881 + 115600 = 1109^2 + 340^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345481 - 2¹⁰ = 1344457 is a prime.

It is a super-2 number, since 2×1345481² = 3620638242722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1345481.

It is not a weakly prime, because it can be changed into another prime (1345441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672740 + 672741.

It is an arithmetic number, because the mean of its divisors is an integer number (672741).

2^1345481 is an apocalyptic number.

It is an amenable number.

1345481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345481 is an equidigital number, since it uses as much as digits as its factorization.

1345481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 26.

The square root of 1345481 is about 1159.9487057625. The cubic root of 1345481 is about 110.3974875592.

The spelling of 1345481 in words is "one million, three hundred forty-five thousand, four hundred eighty-one".