150123505 has 24 divisors (see below), whose sum is σ = 211754088. Its totient is φ = 101864448.

The previous prime is 150123497. The next prime is 150123527. The reversal of 150123505 is 505321051.

It can be written as a sum of positive squares in 4 ways, for example, as 14447601 + 135675904 = 3801^2 + 11648^2 .

It is not a de Polignac number, because 150123505 - 2³ = 150123497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20607 + ... + 26923.

It is an arithmetic number, because the mean of its divisors is an integer number (8823087).

Almost surely, 2^150123505 is an apocalyptic number.

It is an amenable number.

150123505 is a deficient number, since it is larger than the sum of its proper divisors (61630583).

150123505 is an equidigital number, since it uses as much as digits as its factorization.

150123505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6433 (or 6426 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 150123505 is about 12252.4897469861. The cubic root of 150123505 is about 531.4750708608.

Adding to 150123505 its reverse (505321051), we get a palindrome (655444556).

The spelling of 150123505 in words is "one hundred fifty million, one hundred twenty-three thousand, five hundred five".