134999040 has 352 divisors, whose sum is σ = 509359104. Its totient is φ = 30146560.

The previous prime is 134998999. The next prime is 134999063. The reversal of 134999040 is 40999431.

It is a tau number, because it is divible by the number of its divisors (352).

It is a self number, because there is not a number n which added to its sum of digits gives 134999040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2872297 + ... + 2872343.

Almost surely, 2^134999040 is an apocalyptic number.

134999040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134999040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254679552).

134999040 is an abundant number, since it is smaller than the sum of its proper divisors (374360064).

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

134999040 is a wasteful number, since it uses less digits than its factorization.

134999040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 134999040 is about 11618.9087267264. The cubic root of 134999040 is about 512.9915680172.

The spelling of 134999040 in words is "one hundred thirty-four million, nine hundred ninety-nine thousand, forty".