190787066 has 4 divisors (see below), whose sum is σ = 286180602. Its totient is φ = 95393532.

The previous prime is 190787029. The next prime is 190787117. The reversal of 190787066 is 660787091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660787091 = 3137 ⋅210643.

It can be written as a sum of positive squares in only one way, i.e., 139736041 + 51051025 = 11821^2 + 7145^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47696765 + ... + 47696768.

Almost surely, 2^190787066 is an apocalyptic number.

190787066 is a deficient number, since it is larger than the sum of its proper divisors (95393536).

190787066 is an equidigital number, since it uses as much as digits as its factorization.

190787066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95393535.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 190787066 is about 13812.5691310487. The cubic root of 190787066 is about 575.6824320870.

The spelling of 190787066 in words is "one hundred ninety million, seven hundred eighty-seven thousand, sixty-six".