129153494 has 8 divisors (see below), whose sum is σ = 195541128. Its totient is φ = 63973120.

The previous prime is 129153491. The next prime is 129153499. The reversal of 129153494 is 494351921.

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

It is a super-3 number, since 3×129153494³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129153491) 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 3 ways as a sum of consecutive naturals, for example, 301547 + ... + 301974.

It is an arithmetic number, because the mean of its divisors is an integer number (24442641).

Almost surely, 2^129153494 is an apocalyptic number.

129153494 is a deficient number, since it is larger than the sum of its proper divisors (66387634).

129153494 is a wasteful number, since it uses less digits than its factorization.

129153494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603630.

The product of its digits is 38880, while the sum is 38.

The square root of 129153494 is about 11364.5718793098. The cubic root of 129153494 is about 505.4777611131.

The spelling of 129153494 in words is "one hundred twenty-nine million, one hundred fifty-three thousand, four hundred ninety-four".