187742093 has 16 divisors (see below), whose sum is σ = 236265984. Its totient is φ = 144918960.

The previous prime is 187742089. The next prime is 187742129. The reversal of 187742093 is 390247781.

It is a cyclic number.

It is not a de Polignac number, because 187742093 - 2² = 187742089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 187742093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187742053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3155 + ... + 19632.

It is an arithmetic number, because the mean of its divisors is an integer number (14766624).

Almost surely, 2^187742093 is an apocalyptic number.

It is an amenable number.

187742093 is a deficient number, since it is larger than the sum of its proper divisors (48523891).

187742093 is a wasteful number, since it uses less digits than its factorization.

187742093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22912.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 187742093 is about 13701.9010724790. The cubic root of 187742093 is about 572.6033507153.

The spelling of 187742093 in words is "one hundred eighty-seven million, seven hundred forty-two thousand, ninety-three".