1325143071 has 40 divisors (see below), whose sum is σ = 2267443200. Its totient is φ = 755512272.

The previous prime is 1325143069. The next prime is 1325143073. The reversal of 1325143071 is 1703415231.

It is an interprime number because it is at equal distance from previous prime (1325143069) and next prime (1325143073).

It is not a de Polignac number, because 1325143071 - 2¹ = 1325143069 is a prime.

It is a super-2 number, since 2×1325143071² = 3512008317238622082, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325143073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 273730 + ... + 278528.

It is an arithmetic number, because the mean of its divisors is an integer number (56686080).

Almost surely, 2^1325143071 is an apocalyptic number.

1325143071 is a deficient number, since it is larger than the sum of its proper divisors (942300129).

1325143071 is an equidigital number, since it uses as much as digits as its factorization.

1325143071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5305 (or 5296 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1325143071 is about 36402.5146246794. The cubic root of 1325143071 is about 1098.3841484842.

The spelling of 1325143071 in words is "one billion, three hundred twenty-five million, one hundred forty-three thousand, seventy-one".