15140505 has 16 divisors (see below), whose sum is σ = 24623424. Its totient is φ = 7942080.

The previous prime is 15140483. The next prime is 15140507. The reversal of 15140505 is 50504151.

15140505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15140505 - 2⁸ = 15140249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15140507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7359 + ... + 9188.

It is an arithmetic number, because the mean of its divisors is an integer number (1538964).

Almost surely, 2^15140505 is an apocalyptic number.

15140505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15140505 is a deficient number, since it is larger than the sum of its proper divisors (9482919).

15140505 is a wasteful number, since it uses less digits than its factorization.

15140505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16616.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 15140505 is about 3891.0801842162. The cubic root of 15140505 is about 247.3888491822.

Adding to 15140505 its reverse (50504151), we get a palindrome (65644656).

The spelling of 15140505 in words is "fifteen million, one hundred forty thousand, five hundred five".