1485177889 has 4 divisors (see below), whose sum is σ = 1599422356. Its totient is φ = 1370933424.

The previous prime is 1485177877. The next prime is 1485177893. The reversal of 1485177889 is 9887715841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75550864 + 1409627025 = 8692^2 + 37545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1485177889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1485277889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57122214 + ... + 57122239.

It is an arithmetic number, because the mean of its divisors is an integer number (399855589).

Almost surely, 2^1485177889 is an apocalyptic number.

It is an amenable number.

1485177889 is a deficient number, since it is larger than the sum of its proper divisors (114244467).

1485177889 is a wasteful number, since it uses less digits than its factorization.

1485177889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114244466.

The product of its digits is 4515840, while the sum is 58.

The square root of 1485177889 is about 38538.0057735218. The cubic root of 1485177889 is about 1140.9312921947.

The spelling of 1485177889 in words is "one billion, four hundred eighty-five million, one hundred seventy-seven thousand, eight hundred eighty-nine".