134207993 has 2 divisors, whose sum is σ = 134207994. Its totient is φ = 134207992.

The previous prime is 134207987. The next prime is 134207999. The reversal of 134207993 is 399702431.

It is a balanced prime because it is at equal distance from previous prime (134207987) and next prime (134207999).

It can be written as a sum of positive squares in only one way, i.e., 131492089 + 2715904 = 11467^2 + 1648^2 .

It is a cyclic number.

It is not a de Polignac number, because 134207993 - 2⁴ = 134207977 is a prime.

It is not a weakly prime, because it can be changed into another prime (134207999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67103996 + 67103997.

It is an arithmetic number, because the mean of its divisors is an integer number (67103997).

Almost surely, 2^134207993 is an apocalyptic number.

It is an amenable number.

134207993 is a deficient number, since it is larger than the sum of its proper divisors (1).

134207993 is an equidigital number, since it uses as much as digits as its factorization.

134207993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 134207993 is about 11584.8173485817. The cubic root of 134207993 is about 511.9876210081.

The spelling of 134207993 in words is "one hundred thirty-four million, two hundred seven thousand, nine hundred ninety-three".