133344025 has 24 divisors (see below), whose sum is σ = 169803864. Its totient is φ = 103833600.

The previous prime is 133344017. The next prime is 133344053. The reversal of 133344025 is 520443331.

It can be written as a sum of positive squares in 12 ways, for example, as 11108889 + 122235136 = 3333^2 + 11056^2 .

It is not a de Polignac number, because 133344025 - 2³ = 133344017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

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, 207705 + ... + 208345.

It is an arithmetic number, because the mean of its divisors is an integer number (7075161).

Almost surely, 2^133344025 is an apocalyptic number.

It is an amenable number.

133344025 is a deficient number, since it is larger than the sum of its proper divisors (36459839).

133344025 is a wasteful number, since it uses less digits than its factorization.

133344025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 856 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 133344025 is about 11547.4683372590. The cubic root of 133344025 is about 510.8866097724.

Adding to 133344025 its reverse (520443331), we get a palindrome (653787356).

The spelling of 133344025 in words is "one hundred thirty-three million, three hundred forty-four thousand, twenty-five".