180498897 has 6 divisors (see below), whose sum is σ = 260720642. Its totient is φ = 120332592.

The previous prime is 180498889. The next prime is 180498937. The reversal of 180498897 is 798894081.

It can be written as a sum of positive squares in only one way, i.e., 137452176 + 43046721 = 11724^2 + 6561^2 .

It is not a de Polignac number, because 180498897 - 2³ = 180498889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180498797) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10027708 + ... + 10027725.

Almost surely, 2^180498897 is an apocalyptic number.

It is an amenable number.

180498897 is a deficient number, since it is larger than the sum of its proper divisors (80221745).

180498897 is a wasteful number, since it uses less digits than its factorization.

180498897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20055439 (or 20055436 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The square root of 180498897 is about 13434.9877930722. The cubic root of 180498897 is about 565.1427806326.

The spelling of 180498897 in words is "one hundred eighty million, four hundred ninety-eight thousand, eight hundred ninety-seven".