1325761331 has 8 divisors (see below), whose sum is σ = 1400916480. Its totient is φ = 1252065672.

The previous prime is 1325761321. The next prime is 1325761357. The reversal of 1325761331 is 1331675231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1325761331 is a prime.

It is a super-2 number, since 2×1325761331² = 3515286213549783122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1325761321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363005 + ... + 366638.

It is an arithmetic number, because the mean of its divisors is an integer number (175114560).

Almost surely, 2^1325761331 is an apocalyptic number.

1325761331 is a deficient number, since it is larger than the sum of its proper divisors (75155149).

1325761331 is an equidigital number, since it uses as much as digits as its factorization.

1325761331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729745.

The product of its digits is 11340, while the sum is 32.

The square root of 1325761331 is about 36411.0056301663. The cubic root of 1325761331 is about 1098.5549429728.

The spelling of 1325761331 in words is "one billion, three hundred twenty-five million, seven hundred sixty-one thousand, three hundred thirty-one".