133347425 has 6 divisors (see below), whose sum is σ = 165350838. Its totient is φ = 106677920.

The previous prime is 133347419. The next prime is 133347427. The reversal of 133347425 is 524743331.

It can be written as a sum of positive squares in 3 ways, for example, as 1763584 + 131583841 = 1328^2 + 11471^2 .

It is not a de Polignac number, because 133347425 - 2¹⁴ = 133331041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 133347391 and 133347400.

It is not an unprimeable number, because it can be changed into a prime (133347427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2666924 + ... + 2666973.

It is an arithmetic number, because the mean of its divisors is an integer number (27558473).

Almost surely, 2^133347425 is an apocalyptic number.

It is an amenable number.

133347425 is a deficient number, since it is larger than the sum of its proper divisors (32003413).

133347425 is an equidigital number, since it uses as much as digits as its factorization.

133347425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5333907 (or 5333902 counting only the distinct ones).

The product of its digits is 30240, while the sum is 32.

The square root of 133347425 is about 11547.6155547368. The cubic root of 133347425 is about 510.8909519235.

The spelling of 133347425 in words is "one hundred thirty-three million, three hundred forty-seven thousand, four hundred twenty-five".