133204425 has 24 divisors (see below), whose sum is σ = 220622784. Its totient is φ = 70916160.

The previous prime is 133204417. The next prime is 133204433. The reversal of 133204425 is 524402331.

It is an interprime number because it is at equal distance from previous prime (133204417) and next prime (133204433).

It is not a de Polignac number, because 133204425 - 2³ = 133204417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133204395 and 133204404.

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, 53764 + ... + 56186.

It is an arithmetic number, because the mean of its divisors is an integer number (9192616).

Almost surely, 2^133204425 is an apocalyptic number.

133204425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133204425 is a deficient number, since it is larger than the sum of its proper divisors (87418359).

133204425 is a wasteful number, since it uses less digits than its factorization.

133204425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3169 (or 3164 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 133204425 is about 11541.4221394073. The cubic root of 133204425 is about 510.7082623891.

Adding to 133204425 its reverse (524402331), we get a palindrome (657606756).

The spelling of 133204425 in words is "one hundred thirty-three million, two hundred four thousand, four hundred twenty-five".