129951466 has 8 divisors (see below), whose sum is σ = 195801984. Its totient is φ = 64684140.

The previous prime is 129951433. The next prime is 129951491. The reversal of 129951466 is 664159921.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145240 + ... + 146131.

It is an arithmetic number, because the mean of its divisors is an integer number (24475248).

Almost surely, 2^129951466 is an apocalyptic number.

129951466 is a deficient number, since it is larger than the sum of its proper divisors (65850518).

129951466 is a wasteful number, since it uses less digits than its factorization.

129951466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291596.

The product of its digits is 116640, while the sum is 43.

The square root of 129951466 is about 11399.6256956095. The cubic root of 129951466 is about 506.5166521676.

The spelling of 129951466 in words is "one hundred twenty-nine million, nine hundred fifty-one thousand, four hundred sixty-six".