133240446 has 48 divisors (see below), whose sum is σ = 295278048. Its totient is φ = 43411200.

The previous prime is 133240439. The next prime is 133240453. The reversal of 133240446 is 644042331.

It is an interprime number because it is at equal distance from previous prime (133240439) and next prime (133240453).

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 in 23 ways as a sum of consecutive naturals, for example, 174706 + ... + 175466.

It is an arithmetic number, because the mean of its divisors is an integer number (6151626).

Almost surely, 2^133240446 is an apocalyptic number.

133240446 is an abundant number, since it is smaller than the sum of its proper divisors (162037602).

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

133240446 is a wasteful number, since it uses less digits than its factorization.

133240446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977 (or 974 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 133240446 is about 11542.9825435197. The cubic root of 133240446 is about 510.7542933032.

Adding to 133240446 its reverse (644042331), we get a palindrome (777282777).

The spelling of 133240446 in words is "one hundred thirty-three million, two hundred forty thousand, four hundred forty-six".