1412239991 has 2 divisors, whose sum is σ = 1412239992. Its totient is φ = 1412239990.

The previous prime is 1412239979. The next prime is 1412240051. The reversal of 1412239991 is 1999322141.

It is a weak prime.

It is an emirp because it is prime and its reverse (1999322141) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1412239991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1412239921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 706119995 + 706119996.

It is an arithmetic number, because the mean of its divisors is an integer number (706119996).

Almost surely, 2^1412239991 is an apocalyptic number.

1412239991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1412239991 is an equidigital number, since it uses as much as digits as its factorization.

1412239991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 41.

The square root of 1412239991 is about 37579.7816784504. The cubic root of 1412239991 is about 1121.9396636879.

The spelling of 1412239991 in words is "one billion, four hundred twelve million, two hundred thirty-nine thousand, nine hundred ninety-one".