1325316461 has 4 divisors (see below), whose sum is σ = 1514647392. Its totient is φ = 1135985532.

The previous prime is 1325316449. The next prime is 1325316479. The reversal of 1325316461 is 1646135231.

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.

It is a cyclic number.

It is not a de Polignac number, because 1325316461 - 2⁶ = 1325316397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325316401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94665455 + ... + 94665468.

It is an arithmetic number, because the mean of its divisors is an integer number (378661848).

Almost surely, 2^1325316461 is an apocalyptic number.

It is an amenable number.

1325316461 is a deficient number, since it is larger than the sum of its proper divisors (189330931).

1325316461 is an equidigital number, since it uses as much as digits as its factorization.

1325316461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189330930.

The product of its digits is 12960, while the sum is 32.

The square root of 1325316461 is about 36404.8961130230. The cubic root of 1325316461 is about 1098.4320528768.

The spelling of 1325316461 in words is "one billion, three hundred twenty-five million, three hundred sixteen thousand, four hundred sixty-one".