120000172146 has 32 divisors (see below), whose sum is σ = 253116964800. Its totient is φ = 37822037760.

The previous prime is 120000172139. The next prime is 120000172153. The reversal of 120000172146 is 641271000021.

It is an interprime number because it is at equal distance from previous prime (120000172139) and next prime (120000172153).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 950811 + ... + 1069598.

It is an arithmetic number, because the mean of its divisors is an integer number (7909905150).

Almost surely, 2^120000172146 is an apocalyptic number.

120000172146 is an abundant number, since it is smaller than the sum of its proper divisors (133116792654).

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

120000172146 is a wasteful number, since it uses less digits than its factorization.

120000172146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020954.

The product of its (nonzero) digits is 672, while the sum is 24.

Adding to 120000172146 its reverse (641271000021), we get a palindrome (761271172167).

The spelling of 120000172146 in words is "one hundred twenty billion, one hundred seventy-two thousand, one hundred forty-six".