134215784 has 8 divisors (see below), whose sum is σ = 251654610. Its totient is φ = 67107888.

The previous prime is 134215751. The next prime is 134215801. The reversal of 134215784 is 487512431.

It can be written as a sum of positive squares in only one way, i.e., 127193284 + 7022500 = 11278^2 + 2650^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8388479 + ... + 8388494.

Almost surely, 2^134215784 is an apocalyptic number.

It is an amenable number.

134215784 is a deficient number, since it is larger than the sum of its proper divisors (117438826).

134215784 is a wasteful number, since it uses less digits than its factorization.

134215784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16776979 (or 16776975 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 134215784 is about 11585.1536027797. The cubic root of 134215784 is about 511.9975280642.

The spelling of 134215784 in words is "one hundred thirty-four million, two hundred fifteen thousand, seven hundred eighty-four".