134978698 has 8 divisors (see below), whose sum is σ = 213124320. Its totient is φ = 63937260.

The previous prime is 134978693. The next prime is 134978699. The reversal of 134978698 is 896879431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (134978693) 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 3 ways as a sum of consecutive naturals, for example, 1775998 + ... + 1776073.

It is an arithmetic number, because the mean of its divisors is an integer number (26640540).

Almost surely, 2^134978698 is an apocalyptic number.

134978698 is a deficient number, since it is larger than the sum of its proper divisors (78145622).

134978698 is a wasteful number, since it uses less digits than its factorization.

134978698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552092.

The product of its digits is 2612736, while the sum is 55.

The square root of 134978698 is about 11618.0333103327. The cubic root of 134978698 is about 512.9658004299.

The spelling of 134978698 in words is "one hundred thirty-four million, nine hundred seventy-eight thousand, six hundred ninety-eight".