129459154 has 16 divisors (see below), whose sum is σ = 216770400. Its totient is φ = 57476160.

The previous prime is 129459091. The next prime is 129459163. The reversal of 129459154 is 451954921.

It is an unprimeable number.

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, 67479 + ... + 69370.

It is an arithmetic number, because the mean of its divisors is an integer number (13548150).

Almost surely, 2^129459154 is an apocalyptic number.

129459154 is a deficient number, since it is larger than the sum of its proper divisors (87311246).

129459154 is a wasteful number, since it uses less digits than its factorization.

129459154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136905.

The product of its digits is 64800, while the sum is 40.

The square root of 129459154 is about 11378.0118649965. The cubic root of 129459154 is about 505.8762084753.

The spelling of 129459154 in words is "one hundred twenty-nine million, four hundred fifty-nine thousand, one hundred fifty-four".