15148913 has 4 divisors (see below), whose sum is σ = 16314228. Its totient is φ = 13983600.

The previous prime is 15148907. The next prime is 15148919. The reversal of 15148913 is 31984151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31984151 = 71 ⋅450481.

It is an interprime number because it is at equal distance from previous prime (15148907) and next prime (15148919).

It can be written as a sum of positive squares in 2 ways, for example, as 1183744 + 13965169 = 1088^2 + 3737^2 .

It is a cyclic number.

It is not a de Polignac number, because 15148913 - 2⁶ = 15148849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15148913.

It is not an unprimeable number, because it can be changed into a prime (15148919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582638 + ... + 582663.

It is an arithmetic number, because the mean of its divisors is an integer number (4078557).

Almost surely, 2^15148913 is an apocalyptic number.

15148913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15148913 is a deficient number, since it is larger than the sum of its proper divisors (1165315).

15148913 is a wasteful number, since it uses less digits than its factorization.

15148913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165314.

The product of its digits is 4320, while the sum is 32.

The square root of 15148913 is about 3892.1604540409. The cubic root of 15148913 is about 247.4346349849.

It can be divided in two parts, 15148 and 913, that added together give a palindrome (16061).

The spelling of 15148913 in words is "fifteen million, one hundred forty-eight thousand, nine hundred thirteen".