133028248 has 8 divisors (see below), whose sum is σ = 249427980. Its totient is φ = 66514120.

The previous prime is 133028239. The next prime is 133028257. The reversal of 133028248 is 842820331.

It is an interprime number because it is at equal distance from previous prime (133028239) and next prime (133028257).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8314258 + ... + 8314273.

Almost surely, 2^133028248 is an apocalyptic number.

It is an amenable number.

133028248 is a deficient number, since it is larger than the sum of its proper divisors (116399732).

133028248 is a wasteful number, since it uses less digits than its factorization.

133028248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16628537 (or 16628533 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 133028248 is about 11533.7872357695. The cubic root of 133028248 is about 510.4830077454.

Adding to 133028248 its reverse (842820331), we get a palindrome (975848579).

The spelling of 133028248 in words is "one hundred thirty-three million, twenty-eight thousand, two hundred forty-eight".