1305147117 has 16 divisors (see below), whose sum is σ = 1801846080. Its totient is φ = 839328000.

The previous prime is 1305147097. The next prime is 1305147187. The reversal of 1305147117 is 7117415031.

It is not a de Polignac number, because 1305147117 - 2¹¹ = 1305145069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305147187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98242 + ... + 110732.

It is an arithmetic number, because the mean of its divisors is an integer number (112615380).

Almost surely, 2^1305147117 is an apocalyptic number.

It is an amenable number.

1305147117 is a deficient number, since it is larger than the sum of its proper divisors (496698963).

1305147117 is a wasteful number, since it uses less digits than its factorization.

1305147117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13724.

The product of its (nonzero) digits is 2940, while the sum is 30.

The square root of 1305147117 is about 36126.8199126355. The cubic root of 1305147117 is about 1092.8313777440.

The spelling of 1305147117 in words is "one billion, three hundred five million, one hundred forty-seven thousand, one hundred seventeen".