1356073 has 4 divisors (see below), whose sum is σ = 1435860. Its totient is φ = 1276288.

The previous prime is 1356067. The next prime is 1356077. The reversal of 1356073 is 3706531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3706531 = 83 ⋅44657.

It can be written as a sum of positive squares in 2 ways, for example, as 1172889 + 183184 = 1083^2 + 428^2 .

It is a cyclic number.

It is not a de Polignac number, because 1356073 - 2¹³ = 1347881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1356077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39868 + ... + 39901.

It is an arithmetic number, because the mean of its divisors is an integer number (358965).

2^1356073 is an apocalyptic number.

It is an amenable number.

1356073 is a deficient number, since it is larger than the sum of its proper divisors (79787).

1356073 is an equidigital number, since it uses as much as digits as its factorization.

1356073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79786.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 1356073 is about 1164.5054744397. The cubic root of 1356073 is about 110.6864239092.

The spelling of 1356073 in words is "one million, three hundred fifty-six thousand, seventy-three".