1358849231 has 2 divisors, whose sum is σ = 1358849232. Its totient is φ = 1358849230.

The previous prime is 1358849213. The next prime is 1358849251. The reversal of 1358849231 is 1329488531.

Together with previous prime (1358849213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1358849231 is a prime.

It is a super-2 number, since 2×1358849231² = 3692942465178582722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1358849251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 679424615 + 679424616.

It is an arithmetic number, because the mean of its divisors is an integer number (679424616).

Almost surely, 2^1358849231 is an apocalyptic number.

1358849231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1358849231 is an equidigital number, since it uses as much as digits as its factorization.

1358849231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 44.

The square root of 1358849231 is about 36862.5722244121. The cubic root of 1358849231 is about 1107.6190696902.

The spelling of 1358849231 in words is "one billion, three hundred fifty-eight million, eight hundred forty-nine thousand, two hundred thirty-one".