1408513 has 4 divisors (see below), whose sum is σ = 1412100. Its totient is φ = 1404928.

The previous prime is 1408499. The next prime is 1408523. The reversal of 1408513 is 3158041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1238769 + 169744 = 1113^2 + 412^2 .

It is a 3-Lehmer number, since φ(1408513) divides (1408513-1)³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1408513 is a prime.

It is a Duffinian number.

1408513 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1408523) 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, 1120 + ... + 2017.

It is an arithmetic number, because the mean of its divisors is an integer number (353025).

2^1408513 is an apocalyptic number.

It is an amenable number.

1408513 is a deficient number, since it is larger than the sum of its proper divisors (3587).

1408513 is an equidigital number, since it uses as much as digits as its factorization.

1408513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3586.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1408513 is about 1186.8079035800. The cubic root of 1408513 is about 112.0951837531.

The spelling of 1408513 in words is "one million, four hundred eight thousand, five hundred thirteen".