134999999 has 2 divisors, whose sum is σ = 135000000. Its totient is φ = 134999998.

The previous prime is 134999993. The next prime is 135000007. The reversal of 134999999 is 999999431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134999999 - 2⁸ = 134999743 is a prime.

It is a Chen prime.

134999999 is a modest number, since divided by 99999 gives 1349 as remainder.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134999993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67499999 + 67500000.

It is an arithmetic number, because the mean of its divisors is an integer number (67500000).

Almost surely, 2^134999999 is an apocalyptic number.

134999999 is a deficient number, since it is larger than the sum of its proper divisors (1).

134999999 is an equidigital number, since it uses as much as digits as its factorization.

134999999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6377292, while the sum is 62.

The square root of 134999999 is about 11618.9499955891. The cubic root of 134999999 is about 512.9927827364.

The spelling of 134999999 in words is "one hundred thirty-four million, nine hundred ninety-nine thousand, nine hundred ninety-nine".