15145730 has 16 divisors (see below), whose sum is σ = 28448064. Its totient is φ = 5794800.

The previous prime is 15145721. The next prime is 15145733. The reversal of 15145730 is 3754151.

It is a self number, because there is not a number n which added to its sum of digits gives 15145730.

It is not an unprimeable number, because it can be changed into a prime (15145733) 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 7 ways as a sum of consecutive naturals, for example, 32696 + ... + 33155.

It is an arithmetic number, because the mean of its divisors is an integer number (1778004).

Almost surely, 2^15145730 is an apocalyptic number.

15145730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15145730 is a deficient number, since it is larger than the sum of its proper divisors (13302334).

15145730 is a wasteful number, since it uses less digits than its factorization.

15145730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65881.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 15145730 is about 3891.7515336928. The cubic root of 15145730 is about 247.4173039370.

Adding to 15145730 its reverse (3754151), we get a palindrome (18899881).

The spelling of 15145730 in words is "fifteen million, one hundred forty-five thousand, seven hundred thirty".