128147294 has 16 divisors (see below), whose sum is σ = 210178800. Its totient is φ = 58114560.

The previous prime is 128147287. The next prime is 128147303. The reversal of 128147294 is 492741821.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3392 + ... + 16364.

It is an arithmetic number, because the mean of its divisors is an integer number (13136175).

Almost surely, 2^128147294 is an apocalyptic number.

128147294 is a deficient number, since it is larger than the sum of its proper divisors (82031506).

128147294 is a wasteful number, since it uses less digits than its factorization.

128147294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13435.

The product of its digits is 32256, while the sum is 38.

The square root of 128147294 is about 11320.2161640138. The cubic root of 128147294 is about 504.1616571169.

The spelling of 128147294 in words is "one hundred twenty-eight million, one hundred forty-seven thousand, two hundred ninety-four".