134420836 has 81 divisors (see below), whose sum is σ = 283816281. Its totient is φ = 55651200.

The previous prime is 134420831. The next prime is 134420857. The reversal of 134420836 is 638024431.

The square root of 134420836 is 11594.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 104652900 + 29767936 = 10230^2 + 5456^2 .

It is a super-2 number, since 2×134420836² = 36137922301877792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134420798 and 134420807.

It is not an unprimeable number, because it can be changed into a prime (134420831) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4336141 + ... + 4336171.

Almost surely, 2^134420836 is an apocalyptic number.

134420836 is the 11594-th square number.

It is an amenable number.

134420836 is an abundant number, since it is smaller than the sum of its proper divisors (149395445).

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

134420836 is a wasteful number, since it uses less digits than its factorization.

134420836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The cubic root of 134420836 is about 512.2581350116.

The spelling of 134420836 in words is "one hundred thirty-four million, four hundred twenty thousand, eight hundred thirty-six".