133675657 has 2 divisors, whose sum is σ = 133675658. Its totient is φ = 133675656.

The previous prime is 133675649. The next prime is 133675669. The reversal of 133675657 is 756576331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106832896 + 26842761 = 10336^2 + 5181^2 .

It is a cyclic number.

It is not a de Polignac number, because 133675657 - 2³ = 133675649 is a prime.

It is not a weakly prime, because it can be changed into another prime (133675687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66837828 + 66837829.

It is an arithmetic number, because the mean of its divisors is an integer number (66837829).

Almost surely, 2^133675657 is an apocalyptic number.

It is an amenable number.

133675657 is a deficient number, since it is larger than the sum of its proper divisors (1).

133675657 is an equidigital number, since it uses as much as digits as its factorization.

133675657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 396900, while the sum is 43.

The square root of 133675657 is about 11561.8189312928. The cubic root of 133675657 is about 511.3097910515.

The spelling of 133675657 in words is "one hundred thirty-three million, six hundred seventy-five thousand, six hundred fifty-seven".