128236156 has 6 divisors (see below), whose sum is σ = 224413280. Its totient is φ = 64118076.

The previous prime is 128236139. The next prime is 128236169. The reversal of 128236156 is 651632821.

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, 16029516 + ... + 16029523.

Almost surely, 2^128236156 is an apocalyptic number.

It is an amenable number.

128236156 is a deficient number, since it is larger than the sum of its proper divisors (96177124).

128236156 is a wasteful number, since it uses less digits than its factorization.

128236156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32059043 (or 32059041 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 128236156 is about 11324.1404088787. The cubic root of 128236156 is about 504.2781648747.

Adding to 128236156 its reverse (651632821), we get a palindrome (779868977).

The spelling of 128236156 in words is "one hundred twenty-eight million, two hundred thirty-six thousand, one hundred fifty-six".