180097802 has 4 divisors (see below), whose sum is σ = 270146706. Its totient is φ = 90048900.

The previous prime is 180097793. The next prime is 180097823. The reversal of 180097802 is 208790081.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 208790081 = 41 ⋅5092441.

It can be written as a sum of positive squares in only one way, i.e., 154281241 + 25816561 = 12421^2 + 5081^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45024449 + ... + 45024452.

Almost surely, 2^180097802 is an apocalyptic number.

180097802 is a deficient number, since it is larger than the sum of its proper divisors (90048904).

180097802 is an equidigital number, since it uses as much as digits as its factorization.

180097802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90048903.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 180097802 is about 13420.0522353678. The cubic root of 180097802 is about 564.7238601528.

The spelling of 180097802 in words is "one hundred eighty million, ninety-seven thousand, eight hundred two".