129458863 has 2 divisors, whose sum is σ = 129458864. Its totient is φ = 129458862.

The previous prime is 129458753. The next prime is 129458899. The reversal of 129458863 is 368854921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129458863 - 2²¹ = 127361711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129458363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64729431 + 64729432.

It is an arithmetic number, because the mean of its divisors is an integer number (64729432).

Almost surely, 2^129458863 is an apocalyptic number.

129458863 is a deficient number, since it is larger than the sum of its proper divisors (1).

129458863 is an equidigital number, since it uses as much as digits as its factorization.

129458863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 46.

The square root of 129458863 is about 11377.9990771664. Note that the first 3 decimals coincide. The cubic root of 129458863 is about 505.8758294366.

It can be divided in two parts, 129458 and 863, that added together give a 4-th power (130321 = 19⁴).

The spelling of 129458863 in words is "one hundred twenty-nine million, four hundred fifty-eight thousand, eight hundred sixty-three".