133923998 has 16 divisors (see below), whose sum is σ = 217901040. Its totient is φ = 61364736.

The previous prime is 133923997. The next prime is 133924003. The reversal of 133923998 is 899329331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133923991) 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, 14915 + ... + 22142.

It is an arithmetic number, because the mean of its divisors is an integer number (13618815).

Almost surely, 2^133923998 is an apocalyptic number.

133923998 is a deficient number, since it is larger than the sum of its proper divisors (83977042).

133923998 is a wasteful number, since it uses less digits than its factorization.

133923998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37211.

The product of its digits is 314928, while the sum is 47.

The square root of 133923998 is about 11572.5536507722. The cubic root of 133923998 is about 511.6262301980.

The spelling of 133923998 in words is "one hundred thirty-three million, nine hundred twenty-three thousand, nine hundred ninety-eight".