187992041 has 4 divisors (see below), whose sum is σ = 196165632. Its totient is φ = 179818452.

The previous prime is 187992037. The next prime is 187992053. The reversal of 187992041 is 140299781.

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 187992041 - 2² = 187992037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 187992041.

It is not an unprimeable number, because it can be changed into a prime (187992031) 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, 4086761 + ... + 4086806.

It is an arithmetic number, because the mean of its divisors is an integer number (49041408).

Almost surely, 2^187992041 is an apocalyptic number.

It is an amenable number.

187992041 is a deficient number, since it is larger than the sum of its proper divisors (8173591).

187992041 is an equidigital number, since it uses as much as digits as its factorization.

187992041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8173590.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 187992041 is about 13711.0189628634. The cubic root of 187992041 is about 572.8573473778.

The spelling of 187992041 in words is "one hundred eighty-seven million, nine hundred ninety-two thousand, forty-one".