134990109 has 6 divisors (see below), whose sum is σ = 194985726. Its totient is φ = 89993400.

The previous prime is 134990101. The next prime is 134990111. The reversal of 134990109 is 901099431.

It can be written as a sum of positive squares in only one way, i.e., 121484484 + 13505625 = 11022^2 + 3675^2 .

It is not a de Polignac number, because 134990109 - 2³ = 134990101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134990101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7499442 + ... + 7499459.

It is an arithmetic number, because the mean of its divisors is an integer number (32497621).

Almost surely, 2^134990109 is an apocalyptic number.

It is an amenable number.

134990109 is a deficient number, since it is larger than the sum of its proper divisors (59995617).

134990109 is a wasteful number, since it uses less digits than its factorization.

134990109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14998907 (or 14998904 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 134990109 is about 11618.5243899559. The cubic root of 134990109 is about 512.9802552733.

The spelling of 134990109 in words is "one hundred thirty-four million, nine hundred ninety thousand, one hundred nine".