489151801 has 4 divisors (see below), whose sum is σ = 493480692. Its totient is φ = 484822912.

The previous prime is 489151783. The next prime is 489151823. The reversal of 489151801 is 108151984.

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 93141801 + 396010000 = 9651^2 + 19900^2 .

It is a cyclic number.

It is not a de Polignac number, because 489151801 - 2¹¹ = 489149753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489151001) 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, 2164276 + ... + 2164501.

It is an arithmetic number, because the mean of its divisors is an integer number (123370173).

Almost surely, 2^489151801 is an apocalyptic number.

It is an amenable number.

489151801 is a deficient number, since it is larger than the sum of its proper divisors (4328891).

489151801 is a wasteful number, since it uses less digits than its factorization.

489151801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328890.

The product of its (nonzero) digits is 11520, while the sum is 37.

The square root of 489151801 is about 22116.7764604157. The cubic root of 489151801 is about 787.9183572341.

The spelling of 489151801 in words is "four hundred eighty-nine million, one hundred fifty-one thousand, eight hundred one".