15454142120 has 16 divisors (see below), whose sum is σ = 34771819860. Its totient is φ = 6181656832.

The previous prime is 15454142117. The next prime is 15454142161. The reversal of 15454142120 is 2124145451.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14990084356 + 464057764 = 122434^2 + 21542^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193176737 + ... + 193176816.

Almost surely, 2^15454142120 is an apocalyptic number.

15454142120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15454142120 is an abundant number, since it is smaller than the sum of its proper divisors (19317677740).

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

15454142120 is a wasteful number, since it uses less digits than its factorization.

15454142120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386353564 (or 386353560 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 15454142120 its reverse (2124145451), we get a palindrome (17578287571).

The spelling of 15454142120 in words is "fifteen billion, four hundred fifty-four million, one hundred forty-two thousand, one hundred twenty".