1325011481 has 4 divisors (see below), whose sum is σ = 1326805200. Its totient is φ = 1323217764.

The previous prime is 1325011427. The next prime is 1325011483. The reversal of 1325011481 is 1841105231.

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: 1841105231 = 7 ⋅263015033.

It is a cyclic number.

It is not a de Polignac number, because 1325011481 - 2¹⁰ = 1325010457 is a prime.

It is a super-2 number, since 2×1325011481² = 3511310849563626722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1325011481.

It is not an unprimeable number, because it can be changed into a prime (1325011483) 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, 895751 + ... + 897228.

It is an arithmetic number, because the mean of its divisors is an integer number (331701300).

Almost surely, 2^1325011481 is an apocalyptic number.

It is an amenable number.

1325011481 is a deficient number, since it is larger than the sum of its proper divisors (1793719).

1325011481 is an equidigital number, since it uses as much as digits as its factorization.

1325011481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793718.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 1325011481 is about 36400.7071497244. The cubic root of 1325011481 is about 1098.3477898555.

The spelling of 1325011481 in words is "one billion, three hundred twenty-five million, eleven thousand, four hundred eighty-one".