1341232457 has 4 divisors (see below), whose sum is σ = 1343214276. Its totient is φ = 1339250640.

The previous prime is 1341232447. The next prime is 1341232507. The reversal of 1341232457 is 7542321431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7542321431 = 487 ⋅15487313.

It can be written as a sum of positive squares in 2 ways, for example, as 1174021696 + 167210761 = 34264^2 + 12931^2 .

It is a cyclic number.

It is not a de Polignac number, because 1341232457 - 2²⁶ = 1274123593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1341232447) 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 in 3 ways as a sum of consecutive naturals, for example, 989894 + ... + 991247.

It is an arithmetic number, because the mean of its divisors is an integer number (335803569).

Almost surely, 2^1341232457 is an apocalyptic number.

It is an amenable number.

1341232457 is a deficient number, since it is larger than the sum of its proper divisors (1981819).

1341232457 is an equidigital number, since it uses as much as digits as its factorization.

1341232457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981818.

The product of its digits is 20160, while the sum is 32.

The square root of 1341232457 is about 36622.8406462415. The cubic root of 1341232457 is about 1102.8116657686.

Adding to 1341232457 its reverse (7542321431), we get a palindrome (8883553888).

The spelling of 1341232457 in words is "one billion, three hundred forty-one million, two hundred thirty-two thousand, four hundred fifty-seven".