133025004 has 210 divisors, whose sum is σ = 428609020. Its totient is φ = 36006768.

The previous prime is 133025003. The next prime is 133025029. The reversal of 133025004 is 400520331.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (133025003) by changing a digit.

It is a polite number, since it can be written in 69 ways as a sum of consecutive naturals, for example, 7001307 + ... + 7001325.

Almost surely, 2^133025004 is an apocalyptic number.

133025004 is a gapful number since it is divisible by the number (14) 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 133025004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214304510).

133025004 is an abundant number, since it is smaller than the sum of its proper divisors (295584016).

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

133025004 is an frugal number, since it uses more digits than its factorization.

133025004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 31 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 133025004 is about 11533.6466046086. The cubic root of 133025004 is about 510.4788581998.

Adding to 133025004 its reverse (400520331), we get a palindrome (533545335).

The spelling of 133025004 in words is "one hundred thirty-three million, twenty-five thousand, four".