1362649 has 4 divisors (see below), whose sum is σ = 1369764. Its totient is φ = 1355536.

The previous prime is 1362643. The next prime is 1362653. The reversal of 1362649 is 9462631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9462631 = 541 ⋅17491.

It can be written as a sum of positive squares in 2 ways, for example, as 1166400 + 196249 = 1080^2 + 443^2 .

It is a cyclic number.

It is not a de Polignac number, because 1362649 - 2⁷ = 1362521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1362649.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1362643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3262 + ... + 3655.

It is an arithmetic number, because the mean of its divisors is an integer number (342441).

2^1362649 is an apocalyptic number.

It is an amenable number.

1362649 is a deficient number, since it is larger than the sum of its proper divisors (7115).

1362649 is an equidigital number, since it uses as much as digits as its factorization.

1362649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7114.

The product of its digits is 7776, while the sum is 31.

The square root of 1362649 is about 1167.3255758356. The cubic root of 1362649 is about 110.8650525731.

The spelling of 1362649 in words is "one million, three hundred sixty-two thousand, six hundred forty-nine".