15145030646 has 4 divisors (see below), whose sum is σ = 22717545972. Its totient is φ = 7572515322.

The previous prime is 15145030633. The next prime is 15145030657. The reversal of 15145030646 is 64603054151.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3786257660 + ... + 3786257663.

It is an arithmetic number, because the mean of its divisors is an integer number (5679386493).

Almost surely, 2^15145030646 is an apocalyptic number.

15145030646 is a deficient number, since it is larger than the sum of its proper divisors (7572515326).

15145030646 is an equidigital number, since it uses as much as digits as its factorization.

15145030646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7572515325.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 15145030646 its reverse (64603054151), we get a palindrome (79748084797).

The spelling of 15145030646 in words is "fifteen billion, one hundred forty-five million, thirty thousand, six hundred forty-six".