1315406 has 4 divisors (see below), whose sum is σ = 1973112. Its totient is φ = 657702.

The previous prime is 1315399. The next prime is 1315441. The reversal of 1315406 is 6045131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6045131 = 487 ⋅12413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328850 + ... + 328853.

It is an arithmetic number, because the mean of its divisors is an integer number (493278).

2^1315406 is an apocalyptic number.

1315406 is a deficient number, since it is larger than the sum of its proper divisors (657706).

1315406 is an equidigital number, since it uses as much as digits as its factorization.

1315406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657705.

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

The square root of 1315406 is about 1146.9115048686. The cubic root of 1315406 is about 109.5687245373.

The spelling of 1315406 in words is "one million, three hundred fifteen thousand, four hundred six".