1351543 has 2 divisors, whose sum is σ = 1351544. Its totient is φ = 1351542.

The previous prime is 1351541. The next prime is 1351547. The reversal of 1351543 is 3451531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1351543 - 2¹ = 1351541 is a prime.

Together with 1351541, it forms a pair of twin primes.

1351543 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1351541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675771 + 675772.

It is an arithmetic number, because the mean of its divisors is an integer number (675772).

2^1351543 is an apocalyptic number.

1351543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351543 is an equidigital number, since it uses as much as digits as its factorization.

1351543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 22.

The square root of 1351543 is about 1162.5588157164. The cubic root of 1351543 is about 110.5630360427.

The spelling of 1351543 in words is "one million, three hundred fifty-one thousand, five hundred forty-three".