30172134 has 16 divisors (see below), whose sum is σ = 60942960. Its totient is φ = 9957600.

The previous prime is 30172117. The next prime is 30172139. The reversal of 30172134 is 43127103.

It is a super-2 number, since 2×30172134² = 1820715340227912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30172134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30172139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24289 + ... + 25500.

It is an arithmetic number, because the mean of its divisors is an integer number (3808935).

Almost surely, 2^30172134 is an apocalyptic number.

30172134 is an abundant number, since it is smaller than the sum of its proper divisors (30770826).

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

30172134 is a wasteful number, since it uses less digits than its factorization.

30172134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49895.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 30172134 is about 5492.9167115477. The cubic root of 30172134 is about 311.3164068562.

Adding to 30172134 its reverse (43127103), we get a palindrome (73299237).

It can be divided in two parts, 3017 and 2134, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 30172134 in words is "thirty million, one hundred seventy-two thousand, one hundred thirty-four".