180920098 has 4 divisors (see below), whose sum is σ = 271380150. Its totient is φ = 90460048.

The previous prime is 180920063. The next prime is 180920099. The reversal of 180920098 is 890029081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 890029081 = 127 ⋅7008103.

It can be written as a sum of positive squares in only one way, i.e., 123721129 + 57198969 = 11123^2 + 7563^2 .

It is not an unprimeable number, because it can be changed into a prime (180920099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45230023 + ... + 45230026.

Almost surely, 2^180920098 is an apocalyptic number.

180920098 is a deficient number, since it is larger than the sum of its proper divisors (90460052).

180920098 is an equidigital number, since it uses as much as digits as its factorization.

180920098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90460051.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 180920098 is about 13450.6541848343. The cubic root of 180920098 is about 565.5820331535.

The spelling of 180920098 in words is "one hundred eighty million, nine hundred twenty thousand, ninety-eight".