133116377 has 4 divisors (see below), whose sum is σ = 133413300. Its totient is φ = 132819456.

The previous prime is 133116371. The next prime is 133116421. The reversal of 133116377 is 773611331.

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

It can be written as a sum of positive squares in 2 ways, for example, as 92717641 + 40398736 = 9629^2 + 6356^2 .

It is a cyclic number.

It is not a de Polignac number, because 133116377 - 2²⁴ = 116339161 is a prime.

It is a super-2 number, since 2×133116377² = 35439939651212258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133116371) 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, 147788 + ... + 148685.

It is an arithmetic number, because the mean of its divisors is an integer number (33353325).

Almost surely, 2^133116377 is an apocalyptic number.

It is an amenable number.

133116377 is a deficient number, since it is larger than the sum of its proper divisors (296923).

133116377 is an equidigital number, since it uses as much as digits as its factorization.

133116377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296922.

The product of its digits is 7938, while the sum is 32.

The square root of 133116377 is about 11537.6070742594. The cubic root of 133116377 is about 510.5957116927.

The spelling of 133116377 in words is "one hundred thirty-three million, one hundred sixteen thousand, three hundred seventy-seven".