1325570739 has 16 divisors (see below), whose sum is σ = 1863252480. Its totient is φ = 835941600.

The previous prime is 1325570731. The next prime is 1325570747. The reversal of 1325570739 is 9370755231.

It is an interprime number because it is at equal distance from previous prime (1325570731) and next prime (1325570747).

It is not a de Polignac number, because 1325570739 - 2³ = 1325570731 is a prime.

It is a super-2 number, since 2×1325570739² = 3514275568186012242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1325570739.

It is not an unprimeable number, because it can be changed into a prime (1325570731) 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, 21414 + ... + 55764.

It is an arithmetic number, because the mean of its divisors is an integer number (116453280).

Almost surely, 2^1325570739 is an apocalyptic number.

1325570739 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1325570739 is a deficient number, since it is larger than the sum of its proper divisors (537681741).

1325570739 is a wasteful number, since it uses less digits than its factorization.

1325570739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35050.

The product of its (nonzero) digits is 198450, while the sum is 42.

The square root of 1325570739 is about 36408.3883054441. The cubic root of 1325570739 is about 1098.5022975448.

The spelling of 1325570739 in words is "one billion, three hundred twenty-five million, five hundred seventy thousand, seven hundred thirty-nine".