134149993 has 2 divisors, whose sum is σ = 134149994. Its totient is φ = 134149992.

The previous prime is 134149987. The next prime is 134150033. The reversal of 134149993 is 399941431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129345129 + 4804864 = 11373^2 + 2192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134149993 is a prime.

It is equal to p_7599940 and since 134149993 and 7599940 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (134149903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67074996 + 67074997.

It is an arithmetic number, because the mean of its divisors is an integer number (67074997).

Almost surely, 2^134149993 is an apocalyptic number.

It is an amenable number.

134149993 is a deficient number, since it is larger than the sum of its proper divisors (1).

134149993 is an equidigital number, since it uses as much as digits as its factorization.

134149993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 43.

The square root of 134149993 is about 11582.3138016547. The cubic root of 134149993 is about 511.9138560007.

The spelling of 134149993 in words is "one hundred thirty-four million, one hundred forty-nine thousand, nine hundred ninety-three".