133225445 has 16 divisors (see below), whose sum is σ = 165570048. Its totient is φ = 102803520.

The previous prime is 133225429. The next prime is 133225501. The reversal of 133225445 is 544522331.

It is a happy number.

It is not a de Polignac number, because 133225445 - 2⁴ = 133225429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52547 + ... + 55023.

It is an arithmetic number, because the mean of its divisors is an integer number (10348128).

Almost surely, 2^133225445 is an apocalyptic number.

It is an amenable number.

133225445 is a deficient number, since it is larger than the sum of its proper divisors (32344603).

133225445 is a wasteful number, since it uses less digits than its factorization.

133225445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860.

The product of its digits is 14400, while the sum is 29.

The square root of 133225445 is about 11542.3327364966. The cubic root of 133225445 is about 510.7351246675.

Adding to 133225445 its reverse (544522331), we get a palindrome (677747776).

The spelling of 133225445 in words is "one hundred thirty-three million, two hundred twenty-five thousand, four hundred forty-five".