151128 has 24 divisors (see below), whose sum is σ = 409500. Its totient is φ = 50352.

The previous prime is 151121. The next prime is 151141. The reversal of 151128 is 821151.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 151128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151121) by changing a digit.

151128 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 978 + ... + 1121.

2¹⁵¹¹²⁸ is an apocalyptic number.

151128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

151128 is an abundant number, since it is smaller than the sum of its proper divisors (258372).

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

151128 is a wasteful number, since it uses less digits than its factorization.

151128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111 (or 2104 counting only the distinct ones).

The product of its digits is 80, while the sum is 18.

The square root of 151128 is about 388.7518488702. The cubic root of 151128 is about 53.2657825334.

Adding to 151128 its reverse (821151), we get a palindrome (972279).

The spelling of 151128 in words is "one hundred fifty-one thousand, one hundred twenty-eight".