1345549 has 2 divisors, whose sum is σ = 1345550. Its totient is φ = 1345548.

The previous prime is 1345541. The next prime is 1345559. The reversal of 1345549 is 9455431.

1345549 is nontrivially palindromic in base 8.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1102500 + 243049 = 1050^2 + 493^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345549 - 2³ = 1345541 is a prime.

It is a super-2 number, since 2×1345549² = 3621004222802, 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 1345549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1345541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672774 + 672775.

It is an arithmetic number, because the mean of its divisors is an integer number (672775).

2^1345549 is an apocalyptic number.

It is an amenable number.

1345549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345549 is an equidigital number, since it uses as much as digits as its factorization.

1345549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 31.

The square root of 1345549 is about 1159.9780170331. The cubic root of 1345549 is about 110.3993473409.

The spelling of 1345549 in words is "one million, three hundred forty-five thousand, five hundred forty-nine".