1313481 has 8 divisors (see below), whose sum is σ = 1886080. Its totient is φ = 808272.

The previous prime is 1313467. The next prime is 1313567. The reversal of 1313481 is 1843131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1313481 - 2⁵ = 1313449 is a prime.

It is a super-2 number, since 2×1313481² = 3450464674722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16801 + ... + 16878.

It is an arithmetic number, because the mean of its divisors is an integer number (235760).

2^1313481 is an apocalyptic number.

It is an amenable number.

1313481 is a deficient number, since it is larger than the sum of its proper divisors (572599).

1313481 is a wasteful number, since it uses less digits than its factorization.

1313481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33695.

The product of its digits is 288, while the sum is 21.

The square root of 1313481 is about 1146.0719872678. The cubic root of 1313481 is about 109.5152498516.

The spelling of 1313481 in words is "one million, three hundred thirteen thousand, four hundred eighty-one".