1325980581 has 16 divisors (see below), whose sum is σ = 1824912000. Its totient is φ = 855759168.

The previous prime is 1325980561. The next prime is 1325980589. The reversal of 1325980581 is 1850895231.

1325980581 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1325980581 - 2¹⁴ = 1325964197 is a prime.

It is a super-2 number, since 2×1325980581² = 3516449002378195122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325980589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7926 + ... + 52103.

It is an arithmetic number, because the mean of its divisors is an integer number (114057000).

Almost surely, 2^1325980581 is an apocalyptic number.

It is an amenable number.

1325980581 is a deficient number, since it is larger than the sum of its proper divisors (498931419).

1325980581 is a wasteful number, since it uses less digits than its factorization.

1325980581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60268.

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 1325980581 is about 36414.0162712107. The cubic root of 1325980581 is about 1098.6154980891.

The spelling of 1325980581 in words is "one billion, three hundred twenty-five million, nine hundred eighty thousand, five hundred eighty-one".