150014581 has 4 divisors (see below), whose sum is σ = 150086412. Its totient is φ = 149942752.

The previous prime is 150014569. The next prime is 150014591. The reversal of 150014581 is 185410051.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4691556 + 145323025 = 2166^2 + 12055^2 .

It is a cyclic number.

It is not a de Polignac number, because 150014581 - 2¹⁹ = 149490293 is a prime.

It is a super-2 number, since 2×150014581² = 45008749025211122, 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 (150014561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32686 + ... + 36991.

It is an arithmetic number, because the mean of its divisors is an integer number (37521603).

Almost surely, 2^150014581 is an apocalyptic number.

It is an amenable number.

150014581 is a deficient number, since it is larger than the sum of its proper divisors (71831).

150014581 is an equidigital number, since it uses as much as digits as its factorization.

150014581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71830.

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 150014581 is about 12248.0439662829. The cubic root of 150014581 is about 531.3465002830.

The spelling of 150014581 in words is "one hundred fifty million, fourteen thousand, five hundred eighty-one".