133444377 has 24 divisors (see below), whose sum is σ = 210843360. Its totient is φ = 80657280.

The previous prime is 133444357. The next prime is 133444403. The reversal of 133444377 is 773444331.

It is not a de Polignac number, because 133444377 - 2⁶ = 133444313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133444357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39873 + ... + 43089.

It is an arithmetic number, because the mean of its divisors is an integer number (8785140).

Almost surely, 2^133444377 is an apocalyptic number.

It is an amenable number.

133444377 is a deficient number, since it is larger than the sum of its proper divisors (77398983).

133444377 is a wasteful number, since it uses less digits than its factorization.

133444377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3653 (or 3650 counting only the distinct ones).

The product of its digits is 84672, while the sum is 36.

The square root of 133444377 is about 11551.8127148946. The cubic root of 133444377 is about 511.0147385912.

The spelling of 133444377 in words is "one hundred thirty-three million, four hundred forty-four thousand, three hundred seventy-seven".