133457799 has 16 divisors (see below), whose sum is σ = 186048000. Its totient is φ = 84935136.

The previous prime is 133457789. The next prime is 133457809. The reversal of 133457799 is 997754331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (133457789) and next prime (133457809).

It is not a de Polignac number, because 133457799 - 2⁷ = 133457671 is a prime.

It is a super-2 number, since 2×133457799² = 35621968227848802, which contains 22 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133457719) 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 15 ways as a sum of consecutive naturals, for example, 39717 + ... + 42945.

It is an arithmetic number, because the mean of its divisors is an integer number (11628000).

Almost surely, 2^133457799 is an apocalyptic number.

133457799 is a deficient number, since it is larger than the sum of its proper divisors (52590201).

133457799 is a wasteful number, since it uses less digits than its factorization.

133457799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3854.

The product of its digits is 714420, while the sum is 48.

The square root of 133457799 is about 11552.3936480714. The cubic root of 133457799 is about 511.0318708476.

The spelling of 133457799 in words is "one hundred thirty-three million, four hundred fifty-seven thousand, seven hundred ninety-nine".