133131775 has 36 divisors (see below), whose sum is σ = 193380480. Its totient is φ = 90652800.

The previous prime is 133131769. The next prime is 133131781. The reversal of 133131775 is 577131331.

It is an interprime number because it is at equal distance from previous prime (133131769) and next prime (133131781).

It is not a de Polignac number, because 133131775 - 2³ = 133131767 is a prime.

It is a super-3 number, since 3×133131775³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 233691 + ... + 234259.

It is an arithmetic number, because the mean of its divisors is an integer number (5371680).

Almost surely, 2^133131775 is an apocalyptic number.

133131775 is a deficient number, since it is larger than the sum of its proper divisors (60248705).

133131775 is a wasteful number, since it uses less digits than its factorization.

133131775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784 (or 772 counting only the distinct ones).

The product of its digits is 6615, while the sum is 31.

The square root of 133131775 is about 11538.2743510457. The cubic root of 133131775 is about 510.6153983504.

The spelling of 133131775 in words is "one hundred thirty-three million, one hundred thirty-one thousand, seven hundred seventy-five".