185140745 has 8 divisors (see below), whose sum is σ = 222315840. Its totient is φ = 148014640.

The previous prime is 185140741. The next prime is 185140759. The reversal of 185140745 is 547041581.

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

It is not a de Polignac number, because 185140745 - 2² = 185140741 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (185140741) 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, 3341 + ... + 19530.

It is an arithmetic number, because the mean of its divisors is an integer number (27789480).

Almost surely, 2^185140745 is an apocalyptic number.

It is an amenable number.

185140745 is a deficient number, since it is larger than the sum of its proper divisors (37175095).

185140745 is a wasteful number, since it uses less digits than its factorization.

185140745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24495.

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 185140745 is about 13606.6434141562. The cubic root of 185140745 is about 569.9463835892.

The spelling of 185140745 in words is "one hundred eighty-five million, one hundred forty thousand, seven hundred forty-five".