150128778 has 8 divisors (see below), whose sum is σ = 300257568. Its totient is φ = 50042924.

The previous prime is 150128773. The next prime is 150128779. The reversal of 150128778 is 877821051.

It is a sphenic number, since it is the product of 3 distinct primes.

150128778 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (150128773) 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, 12510726 + ... + 12510737.

It is an arithmetic number, because the mean of its divisors is an integer number (37532196).

Almost surely, 2^150128778 is an apocalyptic number.

150128778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

150128778 is a wasteful number, since it uses less digits than its factorization.

150128778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25021468.

The product of its (nonzero) digits is 31360, while the sum is 39.

The square root of 150128778 is about 12252.7049258521. The cubic root of 150128778 is about 531.4812933712.

The spelling of 150128778 in words is "one hundred fifty million, one hundred twenty-eight thousand, seven hundred seventy-eight".