1330145525 has 6 divisors (see below), whose sum is σ = 1649380482. Its totient is φ = 1064116400.

The previous prime is 1330145519. The next prime is 1330145539. The reversal of 1330145525 is 5255410331.

It can be written as a sum of positive squares in 3 ways, for example, as 14922769 + 1315222756 = 3863^2 + 36266^2 .

It is not a de Polignac number, because 1330145525 - 2⁶ = 1330145461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26602886 + ... + 26602935.

It is an arithmetic number, because the mean of its divisors is an integer number (274896747).

Almost surely, 2^1330145525 is an apocalyptic number.

It is an amenable number.

1330145525 is a deficient number, since it is larger than the sum of its proper divisors (319234957).

1330145525 is an equidigital number, since it uses as much as digits as its factorization.

1330145525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53205831 (or 53205826 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1330145525 is about 36471.1601817107. The cubic root of 1330145525 is about 1099.7645570476.

Adding to 1330145525 its reverse (5255410331), we get a palindrome (6585555856).

The spelling of 1330145525 in words is "one billion, three hundred thirty million, one hundred forty-five thousand, five hundred twenty-five".