866133148 has 12 divisors (see below), whose sum is σ = 1556699032. Its totient is φ = 421362000.

The previous prime is 866133143. The next prime is 866133161. The reversal of 866133148 is 841331668.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 866133148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866133143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2925978 + ... + 2926273.

Almost surely, 2^866133148 is an apocalyptic number.

It is an amenable number.

866133148 is a deficient number, since it is larger than the sum of its proper divisors (690565884).

866133148 is a wasteful number, since it uses less digits than its factorization.

866133148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5852292 (or 5852290 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 866133148 is about 29430.1401287863. The cubic root of 866133148 is about 953.2238206423.

It can be divided in two parts, 866133 and 148, that multiplied together give a square (128187684 = 11322²).

The spelling of 866133148 in words is "eight hundred sixty-six million, one hundred thirty-three thousand, one hundred forty-eight".