128925337 has 2 divisors, whose sum is σ = 128925338. Its totient is φ = 128925336.

The previous prime is 128925299. The next prime is 128925343. The reversal of 128925337 is 733529821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81920601 + 47004736 = 9051^2 + 6856^2 .

It is a cyclic number.

It is not a de Polignac number, because 128925337 - 2²³ = 120536729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128925337.

It is not a weakly prime, because it can be changed into another prime (128925347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64462668 + 64462669.

It is an arithmetic number, because the mean of its divisors is an integer number (64462669).

Almost surely, 2^128925337 is an apocalyptic number.

It is an amenable number.

128925337 is a deficient number, since it is larger than the sum of its proper divisors (1).

128925337 is an equidigital number, since it uses as much as digits as its factorization.

128925337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 128925337 is about 11354.5293605680. The cubic root of 128925337 is about 505.1799339205.

The spelling of 128925337 in words is "one hundred twenty-eight million, nine hundred twenty-five thousand, three hundred thirty-seven".