133545865025 has 12 divisors (see below), whose sum is σ = 165657995052. Its totient is φ = 106797258240.

The previous prime is 133545865009. The next prime is 133545865031. The reversal of 133545865025 is 520568545331.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 471932176 + 133073932849 = 21724^2 + 364793^2 .

It is not a de Polignac number, because 133545865025 - 2⁴ = 133545865009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 916664 + ... + 1052313.

It is an arithmetic number, because the mean of its divisors is an integer number (13804832921).

Almost surely, 2^133545865025 is an apocalyptic number.

It is an amenable number.

133545865025 is a deficient number, since it is larger than the sum of its proper divisors (32112130027).

133545865025 is a wasteful number, since it uses less digits than its factorization.

133545865025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971700 (or 1971695 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 133545865025 in words is "one hundred thirty-three billion, five hundred forty-five million, eight hundred sixty-five thousand, twenty-five".