150318073 has 4 divisors (see below), whose sum is σ = 150482560. Its totient is φ = 150153588.

The previous prime is 150318071. The next prime is 150318109. The reversal of 150318073 is 370813051.

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, and also an emirpimes, since its reverse is a distinct semiprime: 370813051 = 7 ⋅52973293.

It is a cyclic number.

It is not a de Polignac number, because 150318073 - 2¹ = 150318071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150318071) 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, 80865 + ... + 82702.

It is an arithmetic number, because the mean of its divisors is an integer number (37620640).

Almost surely, 2^150318073 is an apocalyptic number.

It is an amenable number.

150318073 is a deficient number, since it is larger than the sum of its proper divisors (164487).

150318073 is an equidigital number, since it uses as much as digits as its factorization.

150318073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164486.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 150318073 is about 12260.4271132779. The cubic root of 150318073 is about 531.7045783356.

It can be divided in two parts, 15031 and 8073, that added together give a square (23104 = 152²).

The spelling of 150318073 in words is "one hundred fifty million, three hundred eighteen thousand, seventy-three".