150120505 has 4 divisors (see below), whose sum is σ = 180144612. Its totient is φ = 120096400.

The previous prime is 150120493. The next prime is 150120511. The reversal of 150120505 is 505021051.

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 21706281 + 128414224 = 4659^2 + 11332^2 .

It is not a de Polignac number, because 150120505 - 2⁵ = 150120473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 15012046 + ... + 15012055.

It is an arithmetic number, because the mean of its divisors is an integer number (45036153).

Almost surely, 2^150120505 is an apocalyptic number.

It is an amenable number.

150120505 is a deficient number, since it is larger than the sum of its proper divisors (30024107).

150120505 is an equidigital number, since it uses as much as digits as its factorization.

150120505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30024106.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 150120505 is about 12252.3673222769. The cubic root of 150120505 is about 531.4715305850.

Adding to 150120505 its reverse (505021051), we get a palindrome (655141556).

The spelling of 150120505 in words is "one hundred fifty million, one hundred twenty thousand, five hundred five".