133012460 has 36 divisors (see below), whose sum is σ = 324932832. Its totient is φ = 45603936.

The previous prime is 133012433. The next prime is 133012469. The reversal of 133012460 is 64210331.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (133012469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66884 + ... + 68843.

It is an arithmetic number, because the mean of its divisors is an integer number (9025912).

Almost surely, 2^133012460 is an apocalyptic number.

133012460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133012460 is an abundant number, since it is smaller than the sum of its proper divisors (191920372).

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

133012460 is a wasteful number, since it uses less digits than its factorization.

133012460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135750 (or 135741 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 133012460 is about 11533.1027915301. The cubic root of 133012460 is about 510.4628119731.

Adding to 133012460 its reverse (64210331), we get a palindrome (197222791).

The spelling of 133012460 in words is "one hundred thirty-three million, twelve thousand, four hundred sixty".