129463493 has 8 divisors (see below), whose sum is σ = 130951512. Its totient is φ = 127983616.

The previous prime is 129463489. The next prime is 129463507. The reversal of 129463493 is 394364921.

It can be written as a sum of positive squares in 4 ways, for example, as 82773604 + 46689889 = 9098^2 + 6833^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129463493 - 2² = 129463489 is a prime.

It is a super-2 number, since 2×129463493² = 33521592039522098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129463493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129463403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33371 + ... + 37047.

It is an arithmetic number, because the mean of its divisors is an integer number (16368939).

Almost surely, 2^129463493 is an apocalyptic number.

It is an amenable number.

129463493 is a deficient number, since it is larger than the sum of its proper divisors (1488019).

129463493 is a wasteful number, since it uses less digits than its factorization.

129463493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4071.

The product of its digits is 139968, while the sum is 41.

The square root of 129463493 is about 11378.2025381868. The cubic root of 129463493 is about 505.8818601224.

The spelling of 129463493 in words is "one hundred twenty-nine million, four hundred sixty-three thousand, four hundred ninety-three".