187133242 has 8 divisors (see below), whose sum is σ = 295473600. Its totient is φ = 88642044.

The previous prime is 187133231. The next prime is 187133257. The reversal of 187133242 is 242331781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×187133242² = 70037700522861128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2462242 + ... + 2462317.

It is an arithmetic number, because the mean of its divisors is an integer number (36934200).

Almost surely, 2^187133242 is an apocalyptic number.

187133242 is a deficient number, since it is larger than the sum of its proper divisors (108340358).

187133242 is a wasteful number, since it uses less digits than its factorization.

187133242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924580.

The product of its digits is 8064, while the sum is 31.

The square root of 187133242 is about 13679.6652736827. The cubic root of 187133242 is about 571.9836927067.

The spelling of 187133242 in words is "one hundred eighty-seven million, one hundred thirty-three thousand, two hundred forty-two".