172148 has 6 divisors (see below), whose sum is σ = 301266. Its totient is φ = 86072.

The previous prime is 172147. The next prime is 172153. The reversal of 172148 is 841271.

It can be written as a sum of positive squares in only one way, i.e., 94864 + 77284 = 308^2 + 278^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21515 + ... + 21522.

It is an arithmetic number, because the mean of its divisors is an integer number (50211).

2¹⁷²¹⁴⁸ is an apocalyptic number.

It is an amenable number.

172148 is a deficient number, since it is larger than the sum of its proper divisors (129118).

172148 is a wasteful number, since it uses less digits than its factorization.

172148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43041 (or 43039 counting only the distinct ones).

The product of its digits is 448, while the sum is 23.

The square root of 172148 is about 414.9072185441. The cubic root of 172148 is about 55.6289241014.

The spelling of 172148 in words is "one hundred seventy-two thousand, one hundred forty-eight".