161634030 has 32 divisors (see below), whose sum is σ = 389383200. Its totient is φ = 42940032.

The previous prime is 161634017. The next prime is 161634049. The reversal of 161634030 is 30436161.

161634030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161634030² = 52251119308081800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1945 + ... + 18084.

It is an arithmetic number, because the mean of its divisors is an integer number (12168225).

Almost surely, 2^161634030 is an apocalyptic number.

161634030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161634030 is an abundant number, since it is smaller than the sum of its proper divisors (227749170).

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

161634030 is a wasteful number, since it uses less digits than its factorization.

161634030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20308.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 161634030 is about 12713.5372733162. The cubic root of 161634030 is about 544.7253673416.

The spelling of 161634030 in words is "one hundred sixty-one million, six hundred thirty-four thousand, thirty".