133525316457 has 96 divisors (see below), whose sum is σ = 219165098880. Its totient is φ = 80739141120.

The previous prime is 133525316383. The next prime is 133525316459. The reversal of 133525316457 is 754613525331.

133525316457 is a `hidden beast` number, since 1 + 3 + 3 + 5 + 2 + 531 + 64 + 57 = 666.

It is not a de Polignac number, because 133525316457 - 2¹¹ = 133525314409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133525316459) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 161067519 + ... + 161068347.

It is an arithmetic number, because the mean of its divisors is an integer number (2282969780).

Almost surely, 2^133525316457 is an apocalyptic number.

It is an amenable number.

133525316457 is a deficient number, since it is larger than the sum of its proper divisors (85639782423).

133525316457 is an equidigital number, since it uses as much as digits as its factorization.

133525316457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685 (or 1673 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 45.

The spelling of 133525316457 in words is "one hundred thirty-three billion, five hundred twenty-five million, three hundred sixteen thousand, four hundred fifty-seven".