133238798 has 32 divisors (see below), whose sum is σ = 249765120. Its totient is φ = 51788160.

The previous prime is 133238761. The next prime is 133238803. The reversal of 133238798 is 897832331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90593 + ... + 92051.

It is an arithmetic number, because the mean of its divisors is an integer number (7805160).

Almost surely, 2^133238798 is an apocalyptic number.

133238798 is a deficient number, since it is larger than the sum of its proper divisors (116526322).

133238798 is a wasteful number, since it uses less digits than its factorization.

133238798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072.

The product of its digits is 217728, while the sum is 44.

The square root of 133238798 is about 11542.9111579359. The cubic root of 133238798 is about 510.7521875199.

The spelling of 133238798 in words is "one hundred thirty-three million, two hundred thirty-eight thousand, seven hundred ninety-eight".