12050172 has 18 divisors (see below), whose sum is σ = 30460248. Its totient is φ = 4016712.

The previous prime is 12050153. The next prime is 12050173. The reversal of 12050172 is 27105021.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12050173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 167328 + ... + 167399.

It is an arithmetic number, because the mean of its divisors is an integer number (1692236).

Almost surely, 2^12050172 is an apocalyptic number.

12050172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12050172 is an abundant number, since it is smaller than the sum of its proper divisors (18410076).

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

12050172 is a wasteful number, since it uses less digits than its factorization.

12050172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334737 (or 334732 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 12050172 is about 3471.3357659552. The cubic root of 12050172 is about 229.2614748800.

Adding to 12050172 its reverse (27105021), we get a palindrome (39155193).

The spelling of 12050172 in words is "twelve million, fifty thousand, one hundred seventy-two".