1955128 has 16 divisors (see below), whose sum is σ = 4189680. Its totient is φ = 837888.

The previous prime is 1955123. The next prime is 1955131. The reversal of 1955128 is 8215591.

It is a self number, because there is not a number n which added to its sum of digits gives 1955128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17401 + ... + 17512.

It is an arithmetic number, because the mean of its divisors is an integer number (261855).

2^1955128 is an apocalyptic number.

It is an amenable number.

1955128 is an abundant number, since it is smaller than the sum of its proper divisors (2234552).

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

1955128 is a wasteful number, since it uses less digits than its factorization.

1955128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34926 (or 34922 counting only the distinct ones).

The product of its digits is 3600, while the sum is 31.

The square root of 1955128 is about 1398.2589173683. The cubic root of 1955128 is about 125.0427160677.

The spelling of 1955128 in words is "one million, nine hundred fifty-five thousand, one hundred twenty-eight".