1305117652 has 12 divisors (see below), whose sum is σ = 2315243476. Its totient is φ = 643619520.

The previous prime is 1305117641. The next prime is 1305117661. The reversal of 1305117652 is 2567115031.

It can be written as a sum of positive squares in 2 ways, for example, as 247307076 + 1057810576 = 15726^2 + 32524^2 .

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, 2234499 + ... + 2235082.

Almost surely, 2^1305117652 is an apocalyptic number.

It is an amenable number.

1305117652 is a deficient number, since it is larger than the sum of its proper divisors (1010125824).

1305117652 is a wasteful number, since it uses less digits than its factorization.

1305117652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4469658 (or 4469656 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 1305117652 is about 36126.4121108089. The cubic root of 1305117652 is about 1092.8231537621.

It can be divided in two parts, 13051 and 17652, that added together give a palindrome (30703).

The spelling of 1305117652 in words is "one billion, three hundred five million, one hundred seventeen thousand, six hundred fifty-two".