15390145 has 8 divisors (see below), whose sum is σ = 18520704. Its totient is φ = 12277104.

The previous prime is 15390143. The next prime is 15390149. The reversal of 15390145 is 54109351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15390145 - 2¹ = 15390143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15390143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2359 + ... + 6028.

It is an arithmetic number, because the mean of its divisors is an integer number (2315088).

Almost surely, 2^15390145 is an apocalyptic number.

It is an amenable number.

15390145 is a deficient number, since it is larger than the sum of its proper divisors (3130559).

15390145 is an equidigital number, since it uses as much as digits as its factorization.

15390145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8759.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 15390145 is about 3923.0275298550. The cubic root of 15390145 is about 248.7411114388.

Adding to 15390145 its reverse (54109351), we get a palindrome (69499496).

The spelling of 15390145 in words is "fifteen million, three hundred ninety thousand, one hundred forty-five".