134999993 has 2 divisors, whose sum is σ = 134999994. Its totient is φ = 134999992.

The previous prime is 134999989. The next prime is 134999999. The reversal of 134999993 is 399999431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119421184 + 15578809 = 10928^2 + 3947^2 .

It is a cyclic number.

It is not a de Polignac number, because 134999993 - 2² = 134999989 is a prime.

It is a super-2 number, since 2×134999993² = 36449996220000098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (134999999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67499996 + 67499997.

It is an arithmetic number, because the mean of its divisors is an integer number (67499997).

Almost surely, 2^134999993 is an apocalyptic number.

It is an amenable number.

134999993 is a deficient number, since it is larger than the sum of its proper divisors (1).

134999993 is an equidigital number, since it uses as much as digits as its factorization.

134999993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2125764, while the sum is 56.

The square root of 134999993 is about 11618.9497373902. The cubic root of 134999993 is about 512.9927751365.

The spelling of 134999993 in words is "one hundred thirty-four million, nine hundred ninety-nine thousand, nine hundred ninety-three".