128885357 has 2 divisors, whose sum is σ = 128885358. Its totient is φ = 128885356.

The previous prime is 128885333. The next prime is 128885363. The reversal of 128885357 is 753588821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114361636 + 14523721 = 10694^2 + 3811^2 .

It is a cyclic number.

It is not a de Polignac number, because 128885357 - 2⁶ = 128885293 is a prime.

It is a super-2 number, since 2×128885357² = 33222870498034898, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128885257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64442678 + 64442679.

It is an arithmetic number, because the mean of its divisors is an integer number (64442679).

Almost surely, 2^128885357 is an apocalyptic number.

It is an amenable number.

128885357 is a deficient number, since it is larger than the sum of its proper divisors (1).

128885357 is an equidigital number, since it uses as much as digits as its factorization.

128885357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 537600, while the sum is 47.

The square root of 128885357 is about 11352.7686931427. The cubic root of 128885357 is about 505.1277094255.

The spelling of 128885357 in words is "one hundred twenty-eight million, eight hundred eighty-five thousand, three hundred fifty-seven".