1351936231 has 2 divisors, whose sum is σ = 1351936232. Its totient is φ = 1351936230.

The previous prime is 1351936219. The next prime is 1351936249. The reversal of 1351936231 is 1326391531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1351936231 - 2⁹ = 1351935719 is a prime.

It is a super-2 number, since 2×1351936231² = 3655463145380970722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1351936331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675968115 + 675968116.

It is an arithmetic number, because the mean of its divisors is an integer number (675968116).

Almost surely, 2^1351936231 is an apocalyptic number.

1351936231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351936231 is an equidigital number, since it uses as much as digits as its factorization.

1351936231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 34.

The square root of 1351936231 is about 36768.6854673920. The cubic root of 1351936231 is about 1105.7375776281.

The spelling of 1351936231 in words is "one billion, three hundred fifty-one million, nine hundred thirty-six thousand, two hundred thirty-one".