1356481 has 8 divisors (see below), whose sum is σ = 1641600. Its totient is φ = 1094208.

The previous prime is 1356473. The next prime is 1356491. The reversal of 1356481 is 1846531.

1356481 = 183² + 184² + ... + 216².

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

It is a cyclic number.

It is not a de Polignac number, because 1356481 - 2³ = 1356473 is a prime.

It is a super-2 number, since 2×1356481² = 3680081406722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1356401) 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, 5581 + ... + 5818.

It is an arithmetic number, because the mean of its divisors is an integer number (205200).

2^1356481 is an apocalyptic number.

It is an amenable number.

1356481 is a deficient number, since it is larger than the sum of its proper divisors (285119).

1356481 is a wasteful number, since it uses less digits than its factorization.

1356481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11423.

The product of its digits is 2880, while the sum is 28.

The square root of 1356481 is about 1164.6806429232. The cubic root of 1356481 is about 110.6975234917.

The spelling of 1356481 in words is "one million, three hundred fifty-six thousand, four hundred eighty-one".