133448677 has 4 divisors (see below), whose sum is σ = 137055436. Its totient is φ = 129841920.

The previous prime is 133448671. The next prime is 133448683. The reversal of 133448677 is 776844331.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (133448671) and next prime (133448683).

It can be written as a sum of positive squares in 2 ways, for example, as 93683041 + 39765636 = 9679^2 + 6306^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133448677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133448671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1803324 + ... + 1803397.

It is an arithmetic number, because the mean of its divisors is an integer number (34263859).

Almost surely, 2^133448677 is an apocalyptic number.

It is an amenable number.

133448677 is a deficient number, since it is larger than the sum of its proper divisors (3606759).

133448677 is an equidigital number, since it uses as much as digits as its factorization.

133448677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606758.

The product of its digits is 338688, while the sum is 43.

The square root of 133448677 is about 11551.9988313711. The cubic root of 133448677 is about 511.0202273694.

The spelling of 133448677 in words is "one hundred thirty-three million, four hundred forty-eight thousand, six hundred seventy-seven".