134899990 has 16 divisors (see below), whose sum is σ = 242983152. Its totient is φ = 53923744.

The previous prime is 134899979. The next prime is 134899993. The reversal of 134899990 is 99998431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134899993) 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, 15177 + ... + 22363.

It is an arithmetic number, because the mean of its divisors is an integer number (15186447).

Almost surely, 2^134899990 is an apocalyptic number.

134899990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

134899990 is a deficient number, since it is larger than the sum of its proper divisors (108083162).

134899990 is a wasteful number, since it uses less digits than its factorization.

134899990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9071.

The product of its (nonzero) digits is 629856, while the sum is 52.

The square root of 134899990 is about 11614.6454960967. The cubic root of 134899990 is about 512.8660751572.

The spelling of 134899990 in words is "one hundred thirty-four million, eight hundred ninety-nine thousand, nine hundred ninety".