134805890 has 32 divisors (see below), whose sum is σ = 245984256. Its totient is φ = 53187840.

The previous prime is 134805883. The next prime is 134805899. The reversal of 134805890 is 98508431.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (134805899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311114 + ... + 311546.

It is an arithmetic number, because the mean of its divisors is an integer number (7687008).

Almost surely, 2^134805890 is an apocalyptic number.

134805890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

134805890 is a deficient number, since it is larger than the sum of its proper divisors (111178366).

134805890 is a wasteful number, since it uses less digits than its factorization.

134805890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 134805890 is about 11610.5938693936. The cubic root of 134805890 is about 512.7467968595.

The spelling of 134805890 in words is "one hundred thirty-four million, eight hundred five thousand, eight hundred ninety".