187134222 has 16 divisors (see below), whose sum is σ = 408292992. Its totient is φ = 56707320.

The previous prime is 187134193. The next prime is 187134229. The reversal of 187134222 is 222431781.

187134222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 187134222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187134229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1417618 + ... + 1417749.

It is an arithmetic number, because the mean of its divisors is an integer number (25518312).

Almost surely, 2^187134222 is an apocalyptic number.

187134222 is an abundant number, since it is smaller than the sum of its proper divisors (221158770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

187134222 is a wasteful number, since it uses less digits than its factorization.

187134222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2835383.

The product of its digits is 5376, while the sum is 30.

The square root of 187134222 is about 13679.7010932257. The cubic root of 187134222 is about 571.9846911807.

The spelling of 187134222 in words is "one hundred eighty-seven million, one hundred thirty-four thousand, two hundred twenty-two".