128574101 has 2 divisors, whose sum is σ = 128574102. Its totient is φ = 128574100.

The previous prime is 128574059. The next prime is 128574137. The reversal of 128574101 is 101475821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91680625 + 36893476 = 9575^2 + 6074^2 .

It is a cyclic number.

It is not a de Polignac number, because 128574101 - 2¹⁰ = 128573077 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128574151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64287050 + 64287051.

It is an arithmetic number, because the mean of its divisors is an integer number (64287051).

Almost surely, 2^128574101 is an apocalyptic number.

It is an amenable number.

128574101 is a deficient number, since it is larger than the sum of its proper divisors (1).

128574101 is an equidigital number, since it uses as much as digits as its factorization.

128574101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 128574101 is about 11339.0520326877. The cubic root of 128574101 is about 504.7207566406.

The spelling of 128574101 in words is "one hundred twenty-eight million, five hundred seventy-four thousand, one hundred one".