128370694 has 4 divisors (see below), whose sum is σ = 192556044. Its totient is φ = 64185346.

The previous prime is 128370679. The next prime is 128370701. The reversal of 128370694 is 496073821.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32092672 + ... + 32092675.

It is an arithmetic number, because the mean of its divisors is an integer number (48139011).

Almost surely, 2^128370694 is an apocalyptic number.

128370694 is a deficient number, since it is larger than the sum of its proper divisors (64185350).

128370694 is an equidigital number, since it uses as much as digits as its factorization.

128370694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64185349.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 128370694 is about 11330.0791700676. The cubic root of 128370694 is about 504.4544564539.

The spelling of 128370694 in words is "one hundred twenty-eight million, three hundred seventy thousand, six hundred ninety-four".