133531601256315 has 20 divisors (see below), whose sum is σ = 239367759289824. Its totient is φ = 71216854003152.

The previous prime is 133531601256293. The next prime is 133531601256359. The reversal of 133531601256315 is 513652106135331.

133531601256315 is a `hidden beast` number, since 1 + 3 + 3 + 5 + 3 + 1 + 6 + 0 + 1 + 2 + 5 + 631 + 5 = 666.

It is not a de Polignac number, because 133531601256315 - 2¹⁹ = 133531600732027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 164853828307 + ... + 164853829116.

Almost surely, 2^{133531601256315} is an apocalyptic number.

133531601256315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133531601256315 is a deficient number, since it is larger than the sum of its proper divisors (105836158033509).

133531601256315 is an equidigital number, since it uses as much as digits as its factorization.

133531601256315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329707657440 (or 329707657431 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 45.

The spelling of 133531601256315 in words is "one hundred thirty-three trillion, five hundred thirty-one billion, six hundred one million, two hundred fifty-six thousand, three hundred fifteen".