133205460 has 48 divisors (see below), whose sum is σ = 373476096. Its totient is φ = 35473792.

The previous prime is 133205459. The next prime is 133205461. The reversal of 133205460 is 64502331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (133205459) and next prime (133205461).

It is a self number, because there is not a number n which added to its sum of digits gives 133205460.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133205461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88474 + ... + 89966.

It is an arithmetic number, because the mean of its divisors is an integer number (7780752).

Almost surely, 2^133205460 is an apocalyptic number.

133205460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133205460 is an abundant number, since it is smaller than the sum of its proper divisors (240270636).

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

133205460 is a wasteful number, since it uses less digits than its factorization.

133205460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992 (or 2990 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 133205460 is about 11541.4669778153. The cubic root of 133205460 is about 510.7095851222.

Adding to 133205460 its reverse (64502331), we get a palindrome (197707791).

The spelling of 133205460 in words is "one hundred thirty-three million, two hundred five thousand, four hundred sixty".