187222052 has 6 divisors (see below), whose sum is σ = 327638598. Its totient is φ = 93611024.

The previous prime is 187222039. The next prime is 187222069. The reversal of 187222052 is 250222781.

It can be written as a sum of positive squares in only one way, i.e., 106832896 + 80389156 = 10336^2 + 8966^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23402753 + ... + 23402760.

It is an arithmetic number, because the mean of its divisors is an integer number (54606433).

Almost surely, 2^187222052 is an apocalyptic number.

It is an amenable number.

187222052 is a deficient number, since it is larger than the sum of its proper divisors (140416546).

187222052 is a wasteful number, since it uses less digits than its factorization.

187222052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46805517 (or 46805515 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 187222052 is about 13682.9109476018. The cubic root of 187222052 is about 572.0741627152.

The spelling of 187222052 in words is "one hundred eighty-seven million, two hundred twenty-two thousand, fifty-two".