128161459 has 2 divisors, whose sum is σ = 128161460. Its totient is φ = 128161458.

The previous prime is 128161421. The next prime is 128161477. The reversal of 128161459 is 954161821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128161459 - 2⁷ = 128161331 is a prime.

It is not a weakly prime, because it can be changed into another prime (128161489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64080729 + 64080730.

It is an arithmetic number, because the mean of its divisors is an integer number (64080730).

Almost surely, 2^128161459 is an apocalyptic number.

128161459 is a deficient number, since it is larger than the sum of its proper divisors (1).

128161459 is an equidigital number, since it uses as much as digits as its factorization.

128161459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 37.

The square root of 128161459 is about 11320.8417973223. The cubic root of 128161459 is about 504.1802325820.

The spelling of 128161459 in words is "one hundred twenty-eight million, one hundred sixty-one thousand, four hundred fifty-nine".