128470029 has 16 divisors (see below), whose sum is σ = 177539520. Its totient is φ = 82535040.

The previous prime is 128469967. The next prime is 128470033. The reversal of 128470029 is 920074821.

It is a happy number.

It is not a de Polignac number, because 128470029 - 2¹² = 128465933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128470079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59049 + ... + 61185.

It is an arithmetic number, because the mean of its divisors is an integer number (11096220).

Almost surely, 2^128470029 is an apocalyptic number.

It is an amenable number.

128470029 is a deficient number, since it is larger than the sum of its proper divisors (49069491).

128470029 is a wasteful number, since it uses less digits than its factorization.

128470029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 128470029 is about 11334.4620075238. The cubic root of 128470029 is about 504.5845408269.

The spelling of 128470029 in words is "one hundred twenty-eight million, four hundred seventy thousand, twenty-nine".