1305253015 has 24 divisors (see below), whose sum is σ = 1724484384. Its totient is φ = 947707200.

The previous prime is 1305252983. The next prime is 1305253031. The reversal of 1305253015 is 5103525031.

It is not a de Polignac number, because 1305253015 - 2⁵ = 1305252983 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 23 ways as a sum of consecutive naturals, for example, 466270 + ... + 469060.

It is an arithmetic number, because the mean of its divisors is an integer number (71853516).

Almost surely, 2^1305253015 is an apocalyptic number.

1305253015 is a deficient number, since it is larger than the sum of its proper divisors (419231369).

1305253015 is a wasteful number, since it uses less digits than its factorization.

1305253015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3591 (or 3580 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 1305253015 is about 36128.2855253332. The cubic root of 1305253015 is about 1092.8609339337.

Adding to 1305253015 its reverse (5103525031), we get a palindrome (6408778046).

The spelling of 1305253015 in words is "one billion, three hundred five million, two hundred fifty-three thousand, fifteen".