152172220 has 36 divisors (see below), whose sum is σ = 323342712. Its totient is φ = 60153600.

The previous prime is 152172179. The next prime is 152172233. The reversal of 152172220 is 22271251.

It is a junction number, because it is equal to n+sod(n) for n = 152172191 and 152172200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 631300 + ... + 631540.

It is an arithmetic number, because the mean of its divisors is an integer number (8981742).

Almost surely, 2^152172220 is an apocalyptic number.

152172220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152172220 is an abundant number, since it is smaller than the sum of its proper divisors (171170492).

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

152172220 is a wasteful number, since it uses less digits than its factorization.

152172220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 152172220 is about 12335.8104719552. The cubic root of 152172220 is about 533.8818116214.

The spelling of 152172220 in words is "one hundred fifty-two million, one hundred seventy-two thousand, two hundred twenty".