133162461 has 40 divisors (see below), whose sum is σ = 208565280. Its totient is φ = 84557088.

The previous prime is 133162459. The next prime is 133162481. The reversal of 133162461 is 164261331.

133162461 is a `hidden beast` number, since 1 + 3 + 31 + 624 + 6 + 1 = 666.

It is not a de Polignac number, because 133162461 - 2¹ = 133162459 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133162481) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 194626 + ... + 195308.

It is an arithmetic number, because the mean of its divisors is an integer number (5214132).

Almost surely, 2^133162461 is an apocalyptic number.

It is an amenable number.

133162461 is a deficient number, since it is larger than the sum of its proper divisors (75402819).

133162461 is an equidigital number, since it uses as much as digits as its factorization.

133162461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807 (or 798 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 133162461 is about 11539.6040226691. The cubic root of 133162461 is about 510.6546265021.

The spelling of 133162461 in words is "one hundred thirty-three million, one hundred sixty-two thousand, four hundred sixty-one".