1336491 has 12 divisors (see below), whose sum is σ = 2079168. Its totient is φ = 822384.

The previous prime is 1336487. The next prime is 1336493. The reversal of 1336491 is 1946331.

1336491 is a `hidden beast` number, since 13 + 3 + 649 + 1 = 666.

It is not a de Polignac number, because 1336491 - 2² = 1336487 is a prime.

It is an Ulam number.

1336491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1336493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5595 + ... + 5828.

It is an arithmetic number, because the mean of its divisors is an integer number (173264).

2^1336491 is an apocalyptic number.

1336491 is a deficient number, since it is larger than the sum of its proper divisors (742677).

1336491 is a wasteful number, since it uses less digits than its factorization.

1336491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11442 (or 11439 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 1336491 is about 1156.0670395786. The cubic root of 1336491 is about 110.1510596770.

The spelling of 1336491 in words is "one million, three hundred thirty-six thousand, four hundred ninety-one".