128051692 has 12 divisors (see below), whose sum is σ = 229556376. Its totient is φ = 62464160.

The previous prime is 128051683. The next prime is 128051719. The reversal of 128051692 is 296150821.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390238 + ... + 390565.

It is an arithmetic number, because the mean of its divisors is an integer number (19129698).

Almost surely, 2^128051692 is an apocalyptic number.

It is an amenable number.

128051692 is a deficient number, since it is larger than the sum of its proper divisors (101504684).

128051692 is a wasteful number, since it uses less digits than its factorization.

128051692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780848 (or 780846 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 128051692 is about 11315.9927536209. The cubic root of 128051692 is about 504.0362523264.

The spelling of 128051692 in words is "one hundred twenty-eight million, fifty-one thousand, six hundred ninety-two".