199214761 has 4 divisors (see below), whose sum is σ = 199338832. Its totient is φ = 199090692.

The previous prime is 199214759. The next prime is 199214779. The reversal of 199214761 is 167412991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 199214761 - 2¹ = 199214759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199214731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59595 + ... + 62848.

It is an arithmetic number, because the mean of its divisors is an integer number (49834708).

Almost surely, 2^199214761 is an apocalyptic number.

It is an amenable number.

199214761 is a deficient number, since it is larger than the sum of its proper divisors (124071).

199214761 is a wasteful number, since it uses less digits than its factorization.

199214761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124070.

The product of its digits is 27216, while the sum is 40.

The square root of 199214761 is about 14114.3459288768. The cubic root of 199214761 is about 584.0371928915.

The spelling of 199214761 in words is "one hundred ninety-nine million, two hundred fourteen thousand, seven hundred sixty-one".