129460393 has 2 divisors, whose sum is σ = 129460394. Its totient is φ = 129460392.

The previous prime is 129460363. The next prime is 129460421. The reversal of 129460393 is 393064921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90859024 + 38601369 = 9532^2 + 6213^2 .

It is an emirp because it is prime and its reverse (393064921) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129460393 is a prime.

It is equal to p_7349365 and since 129460393 and 7349365 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 (129460313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64730196 + 64730197.

It is an arithmetic number, because the mean of its divisors is an integer number (64730197).

Almost surely, 2^129460393 is an apocalyptic number.

It is an amenable number.

129460393 is a deficient number, since it is larger than the sum of its proper divisors (1).

129460393 is an equidigital number, since it uses as much as digits as its factorization.

129460393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 129460393 is about 11378.0663119882. The cubic root of 129460393 is about 505.8778223141.

The spelling of 129460393 in words is "one hundred twenty-nine million, four hundred sixty thousand, three hundred ninety-three".