15020109 has 12 divisors (see below), whose sum is σ = 23364796. Its totient is φ = 9243072.

The previous prime is 15020107. The next prime is 15020123. The reversal of 15020109 is 90102051.

It can be written as a sum of positive squares in 2 ways, for example, as 5546025 + 9474084 = 2355^2 + 3078^2 .

It is not a de Polignac number, because 15020109 - 2¹ = 15020107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15020091 and 15020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15020107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64072 + ... + 64305.

Almost surely, 2^15020109 is an apocalyptic number.

It is an amenable number.

15020109 is a deficient number, since it is larger than the sum of its proper divisors (8344687).

15020109 is a wasteful number, since it uses less digits than its factorization.

15020109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128396 (or 128393 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 15020109 is about 3875.5785374573. The cubic root of 15020109 is about 246.7313650188.

It can be divided in two parts, 15020 and 109, that added together give a square (15129 = 123²).

The spelling of 15020109 in words is "fifteen million, twenty thousand, one hundred nine".