133474657 has 2 divisors, whose sum is σ = 133474658. Its totient is φ = 133474656.

The previous prime is 133474637. The next prime is 133474729. The reversal of 133474657 is 756474331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100020001 + 33454656 = 10001^2 + 5784^2 .

It is a cyclic number.

It is not a de Polignac number, because 133474657 - 2¹¹ = 133472609 is a prime.

It is a super-2 number, since 2×133474657² = 35630968122535298, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133474637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66737328 + 66737329.

It is an arithmetic number, because the mean of its divisors is an integer number (66737329).

Almost surely, 2^133474657 is an apocalyptic number.

It is an amenable number.

133474657 is a deficient number, since it is larger than the sum of its proper divisors (1).

133474657 is an equidigital number, since it uses as much as digits as its factorization.

133474657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 40.

The square root of 133474657 is about 11553.1232573707. The cubic root of 133474657 is about 511.0533872936.

The spelling of 133474657 in words is "one hundred thirty-three million, four hundred seventy-four thousand, six hundred fifty-seven".