133420000 has 120 divisors (see below), whose sum is σ = 375517296. Its totient is φ = 45696000.

The previous prime is 133419991. The next prime is 133420003. The reversal of 133420000 is 24331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133420003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 139524 + ... + 140476.

Almost surely, 2^133420000 is an apocalyptic number.

133420000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187758648).

133420000 is an abundant number, since it is smaller than the sum of its proper divisors (242097296).

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

133420000 is an frugal number, since it uses more digits than its factorization.

133420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 133420000 is about 11550.7575509141. The cubic root of 133420000 is about 510.9836200953.

Adding to 133420000 its reverse (24331), we get a palindrome (133444331).

The spelling of 133420000 in words is "one hundred thirty-three million, four hundred twenty thousand".