190481218 has 4 divisors (see below), whose sum is σ = 285721830. Its totient is φ = 95240608.

The previous prime is 190481197. The next prime is 190481219. The reversal of 190481218 is 812184091.

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

It can be written as a sum of positive squares in only one way, i.e., 179211769 + 11269449 = 13387^2 + 3357^2 .

It is not an unprimeable number, because it can be changed into a prime (190481219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47620303 + ... + 47620306.

Almost surely, 2^190481218 is an apocalyptic number.

190481218 is a deficient number, since it is larger than the sum of its proper divisors (95240612).

190481218 is an equidigital number, since it uses as much as digits as its factorization.

190481218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95240611.

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 190481218 is about 13801.4933249993. The cubic root of 190481218 is about 575.3746448177.

The spelling of 190481218 in words is "one hundred ninety million, four hundred eighty-one thousand, two hundred eighteen".