134645988 has 24 divisors (see below), whose sum is σ = 314673408. Its totient is φ = 44810656.

The previous prime is 134645981. The next prime is 134645993. The reversal of 134645988 is 889546431.

It is a super-2 number, since 2×134645988² = 36259084168992288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (134645981) 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, 756 + ... + 16427.

It is an arithmetic number, because the mean of its divisors is an integer number (13111392).

Almost surely, 2^134645988 is an apocalyptic number.

It is an amenable number.

134645988 is an abundant number, since it is smaller than the sum of its proper divisors (180027420).

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

134645988 is a wasteful number, since it uses less digits than its factorization.

134645988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17843 (or 17841 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 134645988 is about 11603.7057873767. The cubic root of 134645988 is about 512.5439825826.

The spelling of 134645988 in words is "one hundred thirty-four million, six hundred forty-five thousand, nine hundred eighty-eight".