1345541 has 2 divisors, whose sum is σ = 1345542. Its totient is φ = 1345540.

The previous prime is 1345537. The next prime is 1345549. The reversal of 1345541 is 1455431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 729316 + 616225 = 854^2 + 785^2 .

It is an emirp because it is prime and its reverse (1455431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1345541 - 2² = 1345537 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1345549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672770 + 672771.

It is an arithmetic number, because the mean of its divisors is an integer number (672771).

2^1345541 is an apocalyptic number.

It is an amenable number.

1345541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345541 is an equidigital number, since it uses as much as digits as its factorization.

1345541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1200, while the sum is 23.

The square root of 1345541 is about 1159.9745686867. The cubic root of 1345541 is about 110.3991285463.

It can be divided in two parts, 13 and 45541, that added together give a palindrome (45554).

The spelling of 1345541 in words is "one million, three hundred forty-five thousand, five hundred forty-one".