1331412457 has 2 divisors, whose sum is σ = 1331412458. Its totient is φ = 1331412456.

The previous prime is 1331412427. The next prime is 1331412461. The reversal of 1331412457 is 7542141331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1306171881 + 25240576 = 36141^2 + 5024^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331412457 - 2¹⁵ = 1331379689 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331412427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665706228 + 665706229.

It is an arithmetic number, because the mean of its divisors is an integer number (665706229).

Almost surely, 2^1331412457 is an apocalyptic number.

It is an amenable number.

1331412457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331412457 is an equidigital number, since it uses as much as digits as its factorization.

1331412457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 1331412457 is about 36488.5250044449. The cubic root of 1331412457 is about 1100.1136127831.

Adding to 1331412457 its reverse (7542141331), we get a palindrome (8873553788).

The spelling of 1331412457 in words is "one billion, three hundred thirty-one million, four hundred twelve thousand, four hundred fifty-seven".