187135097 has 4 divisors (see below), whose sum is σ = 191487120. Its totient is φ = 182783076.

The previous prime is 187135093. The next prime is 187135139. The reversal of 187135097 is 790531781.

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 187135097 - 2² = 187135093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (187135093) 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, 2175947 + ... + 2176032.

It is an arithmetic number, because the mean of its divisors is an integer number (47871780).

Almost surely, 2^187135097 is an apocalyptic number.

It is an amenable number.

187135097 is a deficient number, since it is larger than the sum of its proper divisors (4352023).

187135097 is an equidigital number, since it uses as much as digits as its factorization.

187135097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352022.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 187135097 is about 13679.7330748812. The cubic root of 187135097 is about 571.9855826725.

The spelling of 187135097 in words is "one hundred eighty-seven million, one hundred thirty-five thousand, ninety-seven".