128901523 has 2 divisors, whose sum is σ = 128901524. Its totient is φ = 128901522.

The previous prime is 128901481. The next prime is 128901551. The reversal of 128901523 is 325109821.

It is a strong prime.

It is an emirp because it is prime and its reverse (325109821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128901523 - 2²¹ = 126804371 is a prime.

It is not a weakly prime, because it can be changed into another prime (128901583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64450761 + 64450762.

It is an arithmetic number, because the mean of its divisors is an integer number (64450762).

Almost surely, 2^128901523 is an apocalyptic number.

128901523 is a deficient number, since it is larger than the sum of its proper divisors (1).

128901523 is an equidigital number, since it uses as much as digits as its factorization.

128901523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 128901523 is about 11353.4806557284. The cubic root of 128901523 is about 505.1488278141.

The spelling of 128901523 in words is "one hundred twenty-eight million, nine hundred one thousand, five hundred twenty-three".