165194130 has 16 divisors (see below), whose sum is σ = 396465984. Its totient is φ = 44051760.

The previous prime is 165194129. The next prime is 165194147. The reversal of 165194130 is 31491561.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 5506471 = 165194130 / (1 + 6 + 5 + 1 + 9 + 4 + 1 + 3 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2753206 + ... + 2753265.

It is an arithmetic number, because the mean of its divisors is an integer number (24779124).

Almost surely, 2^165194130 is an apocalyptic number.

165194130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165194130 is an abundant number, since it is smaller than the sum of its proper divisors (231271854).

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

165194130 is a wasteful number, since it uses less digits than its factorization.

165194130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5506481.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 165194130 is about 12852.7868573318. The cubic root of 165194130 is about 548.6956750790.

The spelling of 165194130 in words is "one hundred sixty-five million, one hundred ninety-four thousand, one hundred thirty".