647148 has 24 divisors (see below), whose sum is σ = 1523200. Its totient is φ = 213840.

The previous prime is 647147. The next prime is 647161. The reversal of 647148 is 841746.

647148 = 57² + 58² + ... + 128².

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2253 + ... + 2523.

2⁶⁴⁷¹⁴⁸ is an apocalyptic number.

It is an amenable number.

647148 is an abundant number, since it is smaller than the sum of its proper divisors (876052).

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

647148 is a wasteful number, since it uses less digits than its factorization.

647148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 475 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 647148 is about 804.4550950799. The cubic root of 647148 is about 86.4970317624.

The spelling of 647148 in words is "six hundred forty-seven thousand, one hundred forty-eight".