15630145 has 8 divisors (see below), whose sum is σ = 18982656. Its totient is φ = 12353136.

The previous prime is 15630127. The next prime is 15630149. The reversal of 15630145 is 54103651.

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 15630145 - 2⁹ = 15629633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15630149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18417 + ... + 19246.

It is an arithmetic number, because the mean of its divisors is an integer number (2372832).

Almost surely, 2^15630145 is an apocalyptic number.

It is an amenable number.

15630145 is a deficient number, since it is larger than the sum of its proper divisors (3352511).

15630145 is an equidigital number, since it uses as much as digits as its factorization.

15630145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37751.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 15630145 is about 3953.4978183882. The cubic root of 15630145 is about 250.0274369887.

Adding to 15630145 its reverse (54103651), we get a palindrome (69733796).

The spelling of 15630145 in words is "fifteen million, six hundred thirty thousand, one hundred forty-five".