1361543 has 8 divisors (see below), whose sum is σ = 1416960. Its totient is φ = 1307320.

The previous prime is 1361533. The next prime is 1361573. The reversal of 1361543 is 3451631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1361543 - 2⁸ = 1361287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2528 + ... + 3018.

It is an arithmetic number, because the mean of its divisors is an integer number (177120).

2^1361543 is an apocalyptic number.

1361543 is a deficient number, since it is larger than the sum of its proper divisors (55417).

1361543 is an equidigital number, since it uses as much as digits as its factorization.

1361543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597.

The product of its digits is 1080, while the sum is 23.

The square root of 1361543 is about 1166.8517472241. The cubic root of 1361543 is about 110.8350497533.

The spelling of 1361543 in words is "one million, three hundred sixty-one thousand, five hundred forty-three".