1302534145 has 12 divisors (see below), whose sum is σ = 1718054100. Its totient is φ = 947297120.

The previous prime is 1302534143. The next prime is 1302534157. The reversal of 1302534145 is 5414352031.

It can be written as a sum of positive squares in 2 ways, for example, as 981443584 + 321090561 = 31328^2 + 17919^2 .

It is not a de Polignac number, because 1302534145 - 2¹ = 1302534143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1302534143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1075870 + ... + 1077079.

It is an arithmetic number, because the mean of its divisors is an integer number (143171175).

Almost surely, 2^1302534145 is an apocalyptic number.

It is an amenable number.

1302534145 is a deficient number, since it is larger than the sum of its proper divisors (415519955).

1302534145 is a wasteful number, since it uses less digits than its factorization.

1302534145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152976 (or 2152965 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1302534145 is about 36090.6379134534. The cubic root of 1302534145 is about 1092.1015888641.

Adding to 1302534145 its reverse (5414352031), we get a palindrome (6716886176).

The spelling of 1302534145 in words is "one billion, three hundred two million, five hundred thirty-four thousand, one hundred forty-five".