172808148 has 12 divisors (see below), whose sum is σ = 403219040. Its totient is φ = 57602712.

The previous prime is 172808137. The next prime is 172808159. The reversal of 172808148 is 841808271.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (172808137) and next prime (172808159).

It is a tau number, because it is divible by the number of its divisors (12).

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, 7200328 + ... + 7200351.

Almost surely, 2^172808148 is an apocalyptic number.

It is an amenable number.

172808148 is an abundant number, since it is smaller than the sum of its proper divisors (230410892).

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

172808148 is a wasteful number, since it uses less digits than its factorization.

172808148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14400686 (or 14400684 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 39.

The square root of 172808148 is about 13145.6512961511. The cubic root of 172808148 is about 556.9994144482. Note that the first 3 decimals are identical.

The spelling of 172808148 in words is "one hundred seventy-two million, eight hundred eight thousand, one hundred forty-eight".