15452120534140 has 24 divisors (see below), whose sum is σ = 32603242007952. Its totient is φ = 6151555092480.

The previous prime is 15452120534129. The next prime is 15452120534239. The reversal of 15452120534140 is 4143502125451.

It is a self number, because there is not a number n which added to its sum of digits gives 15452120534140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1830815749 + ... + 1830824188.

It is an arithmetic number, because the mean of its divisors is an integer number (1358468416998).

Almost surely, 2^{15452120534140} is an apocalyptic number.

15452120534140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15452120534140 is an abundant number, since it is smaller than the sum of its proper divisors (17151121473812).

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

15452120534140 is a wasteful number, since it uses less digits than its factorization.

15452120534140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3661640157 (or 3661640155 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 15452120534140 its reverse (4143502125451), we get a palindrome (19595622659591).

The spelling of 15452120534140 in words is "fifteen trillion, four hundred fifty-two billion, one hundred twenty million, five hundred thirty-four thousand, one hundred forty".