1325070731 has 16 divisors (see below), whose sum is σ = 1367829120. Its totient is φ = 1283143680.

The previous prime is 1325070667. The next prime is 1325070827. The reversal of 1325070731 is 1370705231.

It is a cyclic number.

It is not a de Polignac number, because 1325070731 - 2⁶ = 1325070667 is a prime.

It is a super-2 number, since 2×1325070731² = 3511624884305748722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1325070694 and 1325070703.

It is not an unprimeable number, because it can be changed into a prime (1325070031) 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, 1413695 + ... + 1414631.

It is an arithmetic number, because the mean of its divisors is an integer number (85489320).

Almost surely, 2^1325070731 is an apocalyptic number.

1325070731 is a deficient number, since it is larger than the sum of its proper divisors (42758389).

1325070731 is an equidigital number, since it uses as much as digits as its factorization.

1325070731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 1325070731 is about 36401.5209984418. The cubic root of 1325070731 is about 1098.3641610688.

Adding to 1325070731 its reverse (1370705231), we get a palindrome (2695775962).

The spelling of 1325070731 in words is "one billion, three hundred twenty-five million, seventy thousand, seven hundred thirty-one".