15145105420 has 24 divisors (see below), whose sum is σ = 31807742400. Its totient is φ = 6057466752.

The previous prime is 15145105411. The next prime is 15145105421. The reversal of 15145105420 is 2450154151.

It is not an unprimeable number, because it can be changed into a prime (15145105421) 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, 226621 + ... + 285739.

It is an arithmetic number, because the mean of its divisors is an integer number (1325322600).

Almost surely, 2^15145105420 is an apocalyptic number.

15145105420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15145105420 is an abundant number, since it is smaller than the sum of its proper divisors (16662636980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15145105420 is a wasteful number, since it uses less digits than its factorization.

15145105420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71937 (or 71935 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 15145105420 its reverse (2450154151), we get a palindrome (17595259571).

The spelling of 15145105420 in words is "fifteen billion, one hundred forty-five million, one hundred five thousand, four hundred twenty".