1356031 has 4 divisors (see below), whose sum is σ = 1358712. Its totient is φ = 1353352.

The previous prime is 1356007. The next prime is 1356037. The reversal of 1356031 is 1306531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1306531 = 769 ⋅1699.

It is a cyclic number.

It is not a de Polignac number, because 1356031 - 2⁵ = 1355999 is a prime.

It is a super-3 number, since 3×1356031³ = 7480491067072133373, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325 + ... + 1678.

It is an arithmetic number, because the mean of its divisors is an integer number (339678).

2^1356031 is an apocalyptic number.

1356031 is a deficient number, since it is larger than the sum of its proper divisors (2681).

1356031 is an equidigital number, since it uses as much as digits as its factorization.

1356031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1356031 is about 1164.4874408941. The cubic root of 1356031 is about 110.6852811787.

The spelling of 1356031 in words is "one million, three hundred fifty-six thousand, thirty-one".