185147141 has 4 divisors (see below), whose sum is σ = 185184672. Its totient is φ = 185109612.

The previous prime is 185147113. The next prime is 185147161. The reversal of 185147141 is 141741581.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141741581 = 5717 ⋅24793.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-185147141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 185147098 and 185147107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185147111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10001 + ... + 21686.

It is an arithmetic number, because the mean of its divisors is an integer number (46296168).

Almost surely, 2^185147141 is an apocalyptic number.

It is an amenable number.

185147141 is a deficient number, since it is larger than the sum of its proper divisors (37531).

185147141 is an equidigital number, since it uses as much as digits as its factorization.

185147141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37530.

The product of its digits is 4480, while the sum is 32.

The square root of 185147141 is about 13606.8784443751. The cubic root of 185147141 is about 569.9529467674.

The spelling of 185147141 in words is "one hundred eighty-five million, one hundred forty-seven thousand, one hundred forty-one".