150000728723 has 4 divisors (see below), whose sum is σ = 150348758688. Its totient is φ = 149652698760.

The previous prime is 150000728707. The next prime is 150000728771. The reversal of 150000728723 is 327827000051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 150000728723 - 2⁴ = 150000728707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150000722723) 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, 174014336 + ... + 174015197.

It is an arithmetic number, because the mean of its divisors is an integer number (37587189672).

Almost surely, 2^150000728723 is an apocalyptic number.

150000728723 is a deficient number, since it is larger than the sum of its proper divisors (348029965).

150000728723 is an equidigital number, since it uses as much as digits as its factorization.

150000728723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348029964.

The product of its (nonzero) digits is 23520, while the sum is 35.

Adding to 150000728723 its reverse (327827000051), we get a palindrome (477827728774).

The spelling of 150000728723 in words is "one hundred fifty billion, seven hundred twenty-eight thousand, seven hundred twenty-three".