1330142251 has 2 divisors, whose sum is σ = 1330142252. Its totient is φ = 1330142250.

The previous prime is 1330142249. The next prime is 1330142257. The reversal of 1330142251 is 1522410331.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1330142251 - 2¹ = 1330142249 is a prime.

Together with 1330142249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1330142257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665071125 + 665071126.

It is an arithmetic number, because the mean of its divisors is an integer number (665071126).

Almost surely, 2^1330142251 is an apocalyptic number.

1330142251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330142251 is an equidigital number, since it uses as much as digits as its factorization.

1330142251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1330142251 is about 36471.1152969031. The cubic root of 1330142251 is about 1099.7636547323.

Adding to 1330142251 its reverse (1522410331), we get a palindrome (2852552582).

The spelling of 1330142251 in words is "one billion, three hundred thirty million, one hundred forty-two thousand, two hundred fifty-one".