186161480 has 32 divisors (see below), whose sum is σ = 422072640. Its totient is φ = 73894080.

The previous prime is 186161477. The next prime is 186161497. The reversal of 186161480 is 84161681.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 186161480.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12524 + ... + 23003.

It is an arithmetic number, because the mean of its divisors is an integer number (13189770).

Almost surely, 2^186161480 is an apocalyptic number.

186161480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

186161480 is an abundant number, since it is smaller than the sum of its proper divisors (235911160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

186161480 is a wasteful number, since it uses less digits than its factorization.

186161480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35669 (or 35665 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 186161480 is about 13644.1005566508. The cubic root of 186161480 is about 570.9918914977.

The spelling of 186161480 in words is "one hundred eighty-six million, one hundred sixty-one thousand, four hundred eighty".