172143130 has 16 divisors (see below), whose sum is σ = 320542920. Its totient is φ = 66482752.

The previous prime is 172143113. The next prime is 172143151. The reversal of 172143130 is 31341271.

It can be written as a sum of positive squares in 4 ways, for example, as 87815641 + 84327489 = 9371^2 + 9183^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296509 + ... + 297088.

Almost surely, 2^172143130 is an apocalyptic number.

172143130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172143130 is a deficient number, since it is larger than the sum of its proper divisors (148399790).

172143130 is a wasteful number, since it uses less digits than its factorization.

172143130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593633.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 172143130 is about 13120.3326939525. The cubic root of 172143130 is about 556.2839952291.

The spelling of 172143130 in words is "one hundred seventy-two million, one hundred forty-three thousand, one hundred thirty".