186481145 has 8 divisors (see below), whose sum is σ = 226929600. Its totient is φ = 147083440.

The previous prime is 186481133. The next prime is 186481157. The reversal of 186481145 is 541184681.

It is an interprime number because it is at equal distance from previous prime (186481133) and next prime (186481157).

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

It is not a de Polignac number, because 186481145 - 2⁴ = 186481129 is a prime.

It is a super-2 number, since 2×186481145² = 69550434881022050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 186481099 and 186481108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262295 + ... + 263004.

It is an arithmetic number, because the mean of its divisors is an integer number (28366200).

Almost surely, 2^186481145 is an apocalyptic number.

It is an amenable number.

186481145 is a deficient number, since it is larger than the sum of its proper divisors (40448455).

186481145 is an equidigital number, since it uses as much as digits as its factorization.

186481145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525375.

The product of its digits is 30720, while the sum is 38.

The square root of 186481145 is about 13655.8099357014. The cubic root of 186481145 is about 571.3185286164.

The spelling of 186481145 in words is "one hundred eighty-six million, four hundred eighty-one thousand, one hundred forty-five".