128103553 has 2 divisors, whose sum is σ = 128103554. Its totient is φ = 128103552.

The previous prime is 128103541. The next prime is 128103587. The reversal of 128103553 is 355301821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127757809 + 345744 = 11303^2 + 588^2 .

It is a cyclic number.

It is not a de Polignac number, because 128103553 - 2¹³ = 128095361 is a prime.

It is not a weakly prime, because it can be changed into another prime (128103853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64051776 + 64051777.

It is an arithmetic number, because the mean of its divisors is an integer number (64051777).

Almost surely, 2^128103553 is an apocalyptic number.

It is an amenable number.

128103553 is a deficient number, since it is larger than the sum of its proper divisors (1).

128103553 is an equidigital number, since it uses as much as digits as its factorization.

128103553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 128103553 is about 11318.2840130472. The cubic root of 128103553 is about 504.1042881214.

The spelling of 128103553 in words is "one hundred twenty-eight million, one hundred three thousand, five hundred fifty-three".