133457777 has 8 divisors (see below), whose sum is σ = 135535680. Its totient is φ = 131385520.

The previous prime is 133457773. The next prime is 133457789. The reversal of 133457777 is 777754331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133457777 - 2² = 133457773 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (133457771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88643 + ... + 90135.

It is an arithmetic number, because the mean of its divisors is an integer number (16941960).

Almost surely, 2^133457777 is an apocalyptic number.

It is an amenable number.

133457777 is a deficient number, since it is larger than the sum of its proper divisors (2077903).

133457777 is a wasteful number, since it uses less digits than its factorization.

133457777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823.

The product of its digits is 432180, while the sum is 44.

The square root of 133457777 is about 11552.3926958877. The cubic root of 133457777 is about 511.0318427671.

The spelling of 133457777 in words is "one hundred thirty-three million, four hundred fifty-seven thousand, seven hundred seventy-seven".