1413506 has 4 divisors (see below), whose sum is σ = 2120262. Its totient is φ = 706752.

The previous prime is 1413487. The next prime is 1413509. The reversal of 1413506 is 6053141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6053141 = 29 ⋅208729.

It can be written as a sum of positive squares in only one way, i.e., 1343281 + 70225 = 1159^2 + 265^2 .

It is not an unprimeable number, because it can be changed into a prime (1413509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353375 + ... + 353378.

2^1413506 is an apocalyptic number.

1413506 is a deficient number, since it is larger than the sum of its proper divisors (706756).

1413506 is an equidigital number, since it uses as much as digits as its factorization.

1413506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706755.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1413506 is about 1188.9095844512. The cubic root of 1413506 is about 112.2274819538.

Adding to 1413506 its reverse (6053141), we get a palindrome (7466647).

The spelling of 1413506 in words is "one million, four hundred thirteen thousand, five hundred six".