1332401251 has 2 divisors, whose sum is σ = 1332401252. Its totient is φ = 1332401250.

The previous prime is 1332401209. The next prime is 1332401303. The reversal of 1332401251 is 1521042331.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1332401251 - 2²¹ = 1330304099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1332401051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666200625 + 666200626.

It is an arithmetic number, because the mean of its divisors is an integer number (666200626).

Almost surely, 2^1332401251 is an apocalyptic number.

1332401251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1332401251 is an equidigital number, since it uses as much as digits as its factorization.

1332401251 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 1332401251 is about 36502.0718727033. The cubic root of 1332401251 is about 1100.3858841738.

Adding to 1332401251 its reverse (1521042331), we get a palindrome (2853443582).

The spelling of 1332401251 in words is "one billion, three hundred thirty-two million, four hundred one thousand, two hundred fifty-one".