128346619 has 2 divisors, whose sum is σ = 128346620. Its totient is φ = 128346618.

The previous prime is 128346611. The next prime is 128346637. The reversal of 128346619 is 916643821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128346619 - 2³ = 128346611 is a prime.

It is a super-2 number, since 2×128346619² = 32945709217462322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (128346611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64173309 + 64173310.

It is an arithmetic number, because the mean of its divisors is an integer number (64173310).

Almost surely, 2^128346619 is an apocalyptic number.

128346619 is a deficient number, since it is larger than the sum of its proper divisors (1).

128346619 is an equidigital number, since it uses as much as digits as its factorization.

128346619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 128346619 is about 11329.0166828370. The cubic root of 128346619 is about 504.4229188810.

The spelling of 128346619 in words is "one hundred twenty-eight million, three hundred forty-six thousand, six hundred nineteen".