133837138 has 16 divisors (see below), whose sum is σ = 210594816. Its totient is φ = 63669760.

The previous prime is 133837127. The next prime is 133837147. The reversal of 133837138 is 831738331.

It is a junction number, because it is equal to n+sod(n) for n = 133837097 and 133837106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1170 + ... + 16402.

It is an arithmetic number, because the mean of its divisors is an integer number (13162176).

Almost surely, 2^133837138 is an apocalyptic number.

133837138 is a deficient number, since it is larger than the sum of its proper divisors (76757678).

133837138 is a wasteful number, since it uses less digits than its factorization.

133837138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15449.

The product of its digits is 36288, while the sum is 37.

The square root of 133837138 is about 11568.8001970818. The cubic root of 133837138 is about 511.5155966396.

The spelling of 133837138 in words is "one hundred thirty-three million, eight hundred thirty-seven thousand, one hundred thirty-eight".