129453628 has 6 divisors (see below), whose sum is σ = 226543856. Its totient is φ = 64726812.

The previous prime is 129453563. The next prime is 129453647. The reversal of 129453628 is 826354921.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 16181700 + ... + 16181707.

Almost surely, 2^129453628 is an apocalyptic number.

It is an amenable number.

129453628 is a deficient number, since it is larger than the sum of its proper divisors (97090228).

129453628 is a wasteful number, since it uses less digits than its factorization.

129453628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32363411 (or 32363409 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 129453628 is about 11377.7690256043. The cubic root of 129453628 is about 505.8690105507.

The spelling of 129453628 in words is "one hundred twenty-nine million, four hundred fifty-three thousand, six hundred twenty-eight".