172012030 has 32 divisors (see below), whose sum is σ = 316584288. Its totient is φ = 67267200.

The previous prime is 172012003. The next prime is 172012033. The reversal of 172012030 is 30210271.

It is a happy number.

172012030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 172011995 and 172012013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172012033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259900 + ... + 260560.

It is an arithmetic number, because the mean of its divisors is an integer number (9893259).

Almost surely, 2^172012030 is an apocalyptic number.

172012030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172012030 is a deficient number, since it is larger than the sum of its proper divisors (144572258).

172012030 is a wasteful number, since it uses less digits than its factorization.

172012030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 172012030 is about 13115.3356800350. The cubic root of 172012030 is about 556.1427419336.

The spelling of 172012030 in words is "one hundred seventy-two million, twelve thousand, thirty".