133590450 has 96 divisors (see below), whose sum is σ = 386832384. Its totient is φ = 29874240.

The previous prime is 133590421. The next prime is 133590451. The reversal of 133590450 is 54095331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (133590451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47997 + ... + 50703.

It is an arithmetic number, because the mean of its divisors is an integer number (4029504).

Almost surely, 2^133590450 is an apocalyptic number.

133590450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 133590450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193416192).

133590450 is an abundant number, since it is smaller than the sum of its proper divisors (253241934).

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

133590450 is a wasteful number, since it uses less digits than its factorization.

133590450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776 (or 2771 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 133590450 is about 11558.1334998347. The cubic root of 133590450 is about 511.2011289500.

The spelling of 133590450 in words is "one hundred thirty-three million, five hundred ninety thousand, four hundred fifty".