134991396 has 18 divisors (see below), whose sum is σ = 341228342. Its totient is φ = 44997120.

The previous prime is 134991359. The next prime is 134991397. The reversal of 134991396 is 693199431.

It can be written as a sum of positive squares in only one way, i.e., 127373796 + 7617600 = 11286^2 + 2760^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (134991397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1874845 + ... + 1874916.

Almost surely, 2^134991396 is an apocalyptic number.

It is an amenable number.

134991396 is an abundant number, since it is smaller than the sum of its proper divisors (206236946).

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

134991396 is a wasteful number, since it uses less digits than its factorization.

134991396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749771 (or 3749766 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 134991396 is about 11618.5797755147. The cubic root of 134991396 is about 512.9818855248.

The spelling of 134991396 in words is "one hundred thirty-four million, nine hundred ninety-one thousand, three hundred ninety-six".