187738241 has 8 divisors (see below), whose sum is σ = 190495584. Its totient is φ = 184999680.

The previous prime is 187738223. The next prime is 187738247. The reversal of 187738241 is 142837781.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-187738241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (187738247) 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, 16106 + ... + 25196.

It is an arithmetic number, because the mean of its divisors is an integer number (23811948).

Almost surely, 2^187738241 is an apocalyptic number.

It is an amenable number.

187738241 is a deficient number, since it is larger than the sum of its proper divisors (2757343).

187738241 is a wasteful number, since it uses less digits than its factorization.

187738241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9391.

The product of its digits is 75264, while the sum is 41.

The square root of 187738241 is about 13701.7605073217. The cubic root of 187738241 is about 572.5994345571.

The spelling of 187738241 in words is "one hundred eighty-seven million, seven hundred thirty-eight thousand, two hundred forty-one".