150145709 has 4 divisors (see below), whose sum is σ = 171595104. Its totient is φ = 128696316.

The previous prime is 150145663. The next prime is 150145711. The reversal of 150145709 is 907541051.

150145709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 907541051 = 29 ⋅31294519.

It is not a de Polignac number, because 150145709 - 2¹⁶ = 150080173 is a prime.

It is a super-2 number, since 2×150145709² = 45087467862225362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150145729) 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, 10724687 + ... + 10724700.

It is an arithmetic number, because the mean of its divisors is an integer number (42898776).

Almost surely, 2^150145709 is an apocalyptic number.

It is an amenable number.

150145709 is a deficient number, since it is larger than the sum of its proper divisors (21449395).

150145709 is an equidigital number, since it uses as much as digits as its factorization.

150145709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21449394.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 150145709 is about 12253.3958150384. The cubic root of 150145709 is about 531.5012721557.

The spelling of 150145709 in words is "one hundred fifty million, one hundred forty-five thousand, seven hundred nine".