1405413 has 6 divisors (see below), whose sum is σ = 2030054. Its totient is φ = 936936.

The previous prime is 1405403. The next prime is 1405421. The reversal of 1405413 is 3145041.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1205604 + 199809 = 1098^2 + 447^2 .

It is not a de Polignac number, because 1405413 - 2¹² = 1401317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78070 + ... + 78087.

2^1405413 is an apocalyptic number.

It is an amenable number.

1405413 is a deficient number, since it is larger than the sum of its proper divisors (624641).

1405413 is a wasteful number, since it uses less digits than its factorization.

1405413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156163 (or 156160 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1405413 is about 1185.5011598476. The cubic root of 1405413 is about 112.0128864849.

The spelling of 1405413 in words is "one million, four hundred five thousand, four hundred thirteen".