1305272 has 16 divisors (see below), whose sum is σ = 2464560. Its totient is φ = 648064.

The previous prime is 1305253. The next prime is 1305287. The reversal of 1305272 is 2725031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848 + ... + 1824.

It is an arithmetic number, because the mean of its divisors is an integer number (154035).

2^1305272 is an apocalyptic number.

It is an amenable number.

1305272 is a deficient number, since it is larger than the sum of its proper divisors (1159288).

1305272 is a wasteful number, since it uses less digits than its factorization.

1305272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150 (or 1146 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 1305272 is about 1142.4850108426. The cubic root of 1305272 is about 109.2866232489.

The spelling of 1305272 in words is "one million, three hundred five thousand, two hundred seventy-two".