731667133 has 2 divisors, whose sum is σ = 731667134. Its totient is φ = 731667132.

The previous prime is 731667121. The next prime is 731667151. The reversal of 731667133 is 331766137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 728838009 + 2829124 = 26997^2 + 1682^2 .

It is a cyclic number.

It is not a de Polignac number, because 731667133 - 2²⁹ = 194796221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 731667092 and 731667101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (731665133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365833566 + 365833567.

It is an arithmetic number, because the mean of its divisors is an integer number (365833567).

Almost surely, 2^731667133 is an apocalyptic number.

It is an amenable number.

731667133 is a deficient number, since it is larger than the sum of its proper divisors (1).

731667133 is an equidigital number, since it uses as much as digits as its factorization.

731667133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 37.

The square root of 731667133 is about 27049.3462582740. The cubic root of 731667133 is about 901.0962497617.

The spelling of 731667133 in words is "seven hundred thirty-one million, six hundred sixty-seven thousand, one hundred thirty-three".