134389986 has 16 divisors (see below), whose sum is σ = 268898400. Its totient is φ = 44776928.

The previous prime is 134389961. The next prime is 134389987. The reversal of 134389986 is 689983431.

It is not an unprimeable number, because it can be changed into a prime (134389987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18070 + ... + 24398.

It is an arithmetic number, because the mean of its divisors is an integer number (16806150).

Almost surely, 2^134389986 is an apocalyptic number.

134389986 is an abundant number, since it is smaller than the sum of its proper divisors (134508414).

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

134389986 is a wasteful number, since it uses less digits than its factorization.

134389986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9873.

The product of its digits is 1119744, while the sum is 51.

The square root of 134389986 is about 11592.6694941243. The cubic root of 134389986 is about 512.2189437348.

The spelling of 134389986 in words is "one hundred thirty-four million, three hundred eighty-nine thousand, nine hundred eighty-six".