1314453661 has 4 divisors (see below), whose sum is σ = 1356855424. Its totient is φ = 1272051900.

The previous prime is 1314453589. The next prime is 1314453667. The reversal of 1314453661 is 1663544131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1663544131 = 467 ⋅3562193.

It is a cyclic number.

It is not a de Polignac number, because 1314453661 - 2⁷ = 1314453533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1314453667) 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, 21200835 + ... + 21200896.

It is an arithmetic number, because the mean of its divisors is an integer number (339213856).

Almost surely, 2^1314453661 is an apocalyptic number.

It is an amenable number.

1314453661 is a deficient number, since it is larger than the sum of its proper divisors (42401763).

1314453661 is an equidigital number, since it uses as much as digits as its factorization.

1314453661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42401762.

The product of its digits is 25920, while the sum is 34.

The square root of 1314453661 is about 36255.3949226870. The cubic root of 1314453661 is about 1095.4227598285.

Adding to 1314453661 its reverse (1663544131), we get a palindrome (2977997792).

The spelling of 1314453661 in words is "one billion, three hundred fourteen million, four hundred fifty-three thousand, six hundred sixty-one".