128261036 has 6 divisors (see below), whose sum is σ = 224456820. Its totient is φ = 64130516.

The previous prime is 128261027. The next prime is 128261047. The reversal of 128261036 is 630162821.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16032626 + ... + 16032633.

It is an arithmetic number, because the mean of its divisors is an integer number (37409470).

Almost surely, 2^128261036 is an apocalyptic number.

It is an amenable number.

128261036 is a deficient number, since it is larger than the sum of its proper divisors (96195784).

128261036 is a wasteful number, since it uses less digits than its factorization.

128261036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32065263 (or 32065261 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 128261036 is about 11325.2388937276. The cubic root of 128261036 is about 504.3107756188.

The spelling of 128261036 in words is "one hundred twenty-eight million, two hundred sixty-one thousand, thirty-six".