134099778 has 16 divisors (see below), whose sum is σ = 269977536. Its totient is φ = 44403600.

The previous prime is 134099753. The next prime is 134099809. The reversal of 134099778 is 877990431.

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, 73101 + ... + 74912.

It is an arithmetic number, because the mean of its divisors is an integer number (16873596).

Almost surely, 2^134099778 is an apocalyptic number.

134099778 is an abundant number, since it is smaller than the sum of its proper divisors (135877758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134099778 is a wasteful number, since it uses less digits than its factorization.

134099778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148169.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 134099778 is about 11580.1458540037. The cubic root of 134099778 is about 511.8499748634.

The spelling of 134099778 in words is "one hundred thirty-four million, ninety-nine thousand, seven hundred seventy-eight".