1358831 has 2 divisors, whose sum is σ = 1358832. Its totient is φ = 1358830.

The previous prime is 1358821. The next prime is 1358837. The reversal of 1358831 is 1388531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1358831 is a prime.

It is a super-2 number, since 2×1358831² = 3692843373122, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1358794 and 1358803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1358837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 679415 + 679416.

It is an arithmetic number, because the mean of its divisors is an integer number (679416).

2^1358831 is an apocalyptic number.

1358831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1358831 is an equidigital number, since it uses as much as digits as its factorization.

1358831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

The square root of 1358831 is about 1165.6890666040. The cubic root of 1358831 is about 110.7614116211.

The spelling of 1358831 in words is "one million, three hundred fifty-eight thousand, eight hundred thirty-one".