1301661712 has 40 divisors (see below), whose sum is σ = 2875737816. Its totient is φ = 565426176.

The previous prime is 1301661707. The next prime is 1301661733. The reversal of 1301661712 is 2171661031.

It can be written as a sum of positive squares in 4 ways, for example, as 118026496 + 1183635216 = 10864^2 + 34404^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180523 + ... + 187594.

Almost surely, 2^1301661712 is an apocalyptic number.

It is an amenable number.

1301661712 is an abundant number, since it is smaller than the sum of its proper divisors (1574076104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1301661712 is a wasteful number, since it uses less digits than its factorization.

1301661712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368155 (or 368149 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1301661712 is about 36078.5491947778. The cubic root of 1301661712 is about 1091.8577057453.

The spelling of 1301661712 in words is "one billion, three hundred one million, six hundred sixty-one thousand, seven hundred twelve".