1302245145 has 24 divisors (see below), whose sum is σ = 2335062600. Its totient is φ = 670580736.

The previous prime is 1302245111. The next prime is 1302245149. The reversal of 1302245145 is 5415422031.

It can be written as a sum of positive squares in 4 ways, for example, as 1272384 + 1300972761 = 1128^2 + 36069^2 .

It is not a de Polignac number, because 1302245145 - 2⁹ = 1302244633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1302245149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 497640 + ... + 500249.

It is an arithmetic number, because the mean of its divisors is an integer number (97294275).

Almost surely, 2^1302245145 is an apocalyptic number.

1302245145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1302245145 is a deficient number, since it is larger than the sum of its proper divisors (1032817455).

1302245145 is a wasteful number, since it uses less digits than its factorization.

1302245145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997929 (or 997926 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1302245145 is about 36086.6338829212. The cubic root of 1302245145 is about 1092.0208128103.

Adding to 1302245145 its reverse (5415422031), we get a palindrome (6717667176).

The spelling of 1302245145 in words is "one billion, three hundred two million, two hundred forty-five thousand, one hundred forty-five".