192900661 has 4 divisors (see below), whose sum is σ = 192936652. Its totient is φ = 192864672.

The previous prime is 192900637. The next prime is 192900667. The reversal of 192900661 is 166009291.

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

It can be written as a sum of positive squares in 2 ways, for example, as 139098436 + 53802225 = 11794^2 + 7335^2 .

It is a cyclic number.

It is not a de Polignac number, because 192900661 - 2⁵ = 192900629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192900667) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 8166 + ... + 21271.

It is an arithmetic number, because the mean of its divisors is an integer number (48234163).

Almost surely, 2^192900661 is an apocalyptic number.

It is an amenable number.

192900661 is a deficient number, since it is larger than the sum of its proper divisors (35991).

192900661 is an equidigital number, since it uses as much as digits as its factorization.

192900661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35990.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 192900661 is about 13888.8682404291. The cubic root of 192900661 is about 577.8004892850.

The spelling of 192900661 in words is "one hundred ninety-two million, nine hundred thousand, six hundred sixty-one".