134917899 has 16 divisors (see below), whose sum is σ = 191342592. Its totient is φ = 84267648.

The previous prime is 134917877. The next prime is 134917903. The reversal of 134917899 is 998719431.

It is a happy number.

It is not a de Polignac number, because 134917899 - 2¹⁶ = 134852363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (134917829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5442 + ... + 17304.

It is an arithmetic number, because the mean of its divisors is an integer number (11958912).

Almost surely, 2^134917899 is an apocalyptic number.

134917899 is a deficient number, since it is larger than the sum of its proper divisors (56424693).

134917899 is a wasteful number, since it uses less digits than its factorization.

134917899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12106.

The product of its digits is 489888, while the sum is 51.

The square root of 134917899 is about 11615.4164367878. The cubic root of 134917899 is about 512.8887697774. Note that the first 3 decimals are identical.

The spelling of 134917899 in words is "one hundred thirty-four million, nine hundred seventeen thousand, eight hundred ninety-nine".