187038145 has 48 divisors (see below), whose sum is σ = 274475520. Its totient is φ = 121855104.

The previous prime is 187038143. The next prime is 187038149. The reversal of 187038145 is 541830781.

It is not a de Polignac number, because 187038145 - 2¹ = 187038143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (187038143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 425836 + ... + 426274.

It is an arithmetic number, because the mean of its divisors is an integer number (5718240).

Almost surely, 2^187038145 is an apocalyptic number.

It is an amenable number.

187038145 is a deficient number, since it is larger than the sum of its proper divisors (87437375).

187038145 is a wasteful number, since it uses less digits than its factorization.

187038145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 187038145 is about 13676.1889793904. The cubic root of 187038145 is about 571.8867864433.

The spelling of 187038145 in words is "one hundred eighty-seven million, thirty-eight thousand, one hundred forty-five".