128251092 has 48 divisors (see below), whose sum is σ = 310188032. Its totient is φ = 41199840.

The previous prime is 128251087. The next prime is 128251093. The reversal of 128251092 is 290152821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128251093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113643 + ... + 114765.

Almost surely, 2^128251092 is an apocalyptic number.

128251092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128251092 is an abundant number, since it is smaller than the sum of its proper divisors (181936940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128251092 is a wasteful number, since it uses less digits than its factorization.

128251092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468 (or 1466 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 128251092 is about 11324.7998657813. The cubic root of 128251092 is about 504.2977423129.

The spelling of 128251092 in words is "one hundred twenty-eight million, two hundred fifty-one thousand, ninety-two".