150728642 has 8 divisors (see below), whose sum is σ = 226764876. Its totient is φ = 75140352.

The previous prime is 150728623. The next prime is 150728651. The reversal of 150728642 is 246827051.

It can be written as a sum of positive squares in 2 ways, for example, as 127215841 + 23512801 = 11279^2 + 4849^2 .

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

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, 111143 + ... + 112490.

Almost surely, 2^150728642 is an apocalyptic number.

150728642 is a deficient number, since it is larger than the sum of its proper divisors (76036234).

150728642 is a wasteful number, since it uses less digits than its factorization.

150728642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223972.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 150728642 is about 12277.1593620023. The cubic root of 150728642 is about 532.1882260263.

The spelling of 150728642 in words is "one hundred fifty million, seven hundred twenty-eight thousand, six hundred forty-two".