171213030 has 24 divisors (see below), whose sum is σ = 445154112. Its totient is φ = 45656784.

The previous prime is 171213017. The next prime is 171213041. The reversal of 171213030 is 30312171.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 171212994 and 171213012.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 951094 + ... + 951273.

It is an arithmetic number, because the mean of its divisors is an integer number (18548088).

Almost surely, 2^171213030 is an apocalyptic number.

171213030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

171213030 is an abundant number, since it is smaller than the sum of its proper divisors (273941082).

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

171213030 is a wasteful number, since it uses less digits than its factorization.

171213030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902380 (or 1902377 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 171213030 is about 13084.8397009669. The cubic root of 171213030 is about 555.2803064211.

The spelling of 171213030 in words is "one hundred seventy-one million, two hundred thirteen thousand, thirty".