150201993 has 4 divisors (see below), whose sum is σ = 200269328. Its totient is φ = 100134660.

The previous prime is 150201959. The next prime is 150202033. The reversal of 150201993 is 399102051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 150201993 - 2⁶ = 150201929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 150201993.

It is not an unprimeable number, because it can be changed into a prime (150201893) 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, 25033663 + ... + 25033668.

It is an arithmetic number, because the mean of its divisors is an integer number (50067332).

Almost surely, 2^150201993 is an apocalyptic number.

It is an amenable number.

150201993 is a deficient number, since it is larger than the sum of its proper divisors (50067335).

150201993 is an equidigital number, since it uses as much as digits as its factorization.

150201993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50067334.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 150201993 is about 12255.6922693090. The cubic root of 150201993 is about 531.5676771623.

The spelling of 150201993 in words is "one hundred fifty million, two hundred one thousand, nine hundred ninety-three".