172061140 has 12 divisors (see below), whose sum is σ = 361328436. Its totient is φ = 68824448.

The previous prime is 172061107. The next prime is 172061209. The reversal of 172061140 is 41160271.

It can be written as a sum of positive squares in 2 ways, for example, as 64192144 + 107868996 = 8012^2 + 10386^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4301509 + ... + 4301548.

It is an arithmetic number, because the mean of its divisors is an integer number (30110703).

Almost surely, 2^172061140 is an apocalyptic number.

172061140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172061140 is an abundant number, since it is smaller than the sum of its proper divisors (189267296).

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

172061140 is a wasteful number, since it uses less digits than its factorization.

172061140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8603066 (or 8603064 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 172061140 is about 13117.2077821463. The cubic root of 172061140 is about 556.1956637578.

The spelling of 172061140 in words is "one hundred seventy-two million, sixty-one thousand, one hundred forty".