133122550 has 48 divisors (see below), whose sum is σ = 284356800. Its totient is φ = 45856800.

The previous prime is 133122541. The next prime is 133122571. The reversal of 133122550 is 55221331.

It is a super-2 number, since 2×133122550² = 35443226637005000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 4081 + ... + 16819.

It is an arithmetic number, because the mean of its divisors is an integer number (5924100).

Almost surely, 2^133122550 is an apocalyptic number.

133122550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133122550 is an abundant number, since it is smaller than the sum of its proper divisors (151234250).

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

133122550 is a wasteful number, since it uses less digits than its factorization.

133122550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12781 (or 12776 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 133122550 is about 11537.8745876353. The cubic root of 133122550 is about 510.6036041816.

Adding to 133122550 its reverse (55221331), we get a palindrome (188343881).

The spelling of 133122550 in words is "one hundred thirty-three million, one hundred twenty-two thousand, five hundred fifty".