133012550 has 48 divisors (see below), whose sum is σ = 274536000. Its totient is φ = 47536800.

The previous prime is 133012549. The next prime is 133012571. The reversal of 133012550 is 55210331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30401 + ... + 34499.

It is an arithmetic number, because the mean of its divisors is an integer number (5719500).

Almost surely, 2^133012550 is an apocalyptic number.

133012550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133012550 is an abundant number, since it is smaller than the sum of its proper divisors (141523450).

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

133012550 is a wasteful number, since it uses less digits than its factorization.

133012550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4181 (or 4176 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 133012550 is about 11533.1066933416. The cubic root of 133012550 is about 510.4629271043.

Adding to 133012550 its reverse (55210331), we get a palindrome (188222881).

It can be divided in two parts, 13301 and 2550, that added together give a palindrome (15851).

The spelling of 133012550 in words is "one hundred thirty-three million, twelve thousand, five hundred fifty".