129845293 has 2 divisors, whose sum is σ = 129845294. Its totient is φ = 129845292.

The previous prime is 129845279. The next prime is 129845333. The reversal of 129845293 is 392548921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73324969 + 56520324 = 8563^2 + 7518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129845293 is a prime.

It is a super-2 number, since 2×129845293² = 33719600228511698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129845273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64922646 + 64922647.

It is an arithmetic number, because the mean of its divisors is an integer number (64922647).

Almost surely, 2^129845293 is an apocalyptic number.

It is an amenable number.

129845293 is a deficient number, since it is larger than the sum of its proper divisors (1).

129845293 is an equidigital number, since it uses as much as digits as its factorization.

129845293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The square root of 129845293 is about 11394.9678806041. The cubic root of 129845293 is about 506.3786697684.

The spelling of 129845293 in words is "one hundred twenty-nine million, eight hundred forty-five thousand, two hundred ninety-three".