1505123113 has 16 divisors (see below), whose sum is σ = 1684408320. Its totient is φ = 1335345984.

The previous prime is 1505123093. The next prime is 1505123119. The reversal of 1505123113 is 3113215051.

It is a cyclic number.

It is not a de Polignac number, because 1505123113 - 2¹³ = 1505114921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1505123119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75120 + ... + 93022.

It is an arithmetic number, because the mean of its divisors is an integer number (105275520).

Almost surely, 2^1505123113 is an apocalyptic number.

1505123113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1505123113 is a deficient number, since it is larger than the sum of its proper divisors (179285207).

1505123113 is a wasteful number, since it uses less digits than its factorization.

1505123113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18168.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1505123113 is about 38795.9161897229. The cubic root of 1505123113 is about 1146.0159839982.

Adding to 1505123113 its reverse (3113215051), we get a palindrome (4618338164).

The spelling of 1505123113 in words is "one billion, five hundred five million, one hundred twenty-three thousand, one hundred thirteen".