1308051889 has 9 divisors (see below), whose sum is σ = 1332772203. Its totient is φ = 1283783832.

The previous prime is 1308051869. The next prime is 1308051919. The reversal of 1308051889 is 9881508031.

The square root of 1308051889 is 36167.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4264225 + 1303787664 = 2065^2 + 36108^2 .

It is not a de Polignac number, because 1308051889 - 2⁷ = 1308051761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1308051869) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2133547 + ... + 2134159.

Almost surely, 2^1308051889 is an apocalyptic number.

1308051889 is the 36167-th square number.

1308051889 is the 18084-th centered octagonal number.

It is an amenable number.

1308051889 is a deficient number, since it is larger than the sum of its proper divisors (24720314).

1308051889 is an frugal number, since it uses more digits than its factorization.

1308051889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 43.

The cubic root of 1308051889 is about 1093.6415223943.

The spelling of 1308051889 in words is "one billion, three hundred eight million, fifty-one thousand, eight hundred eighty-nine".