15214322545240 has 128 divisors (see below), whose sum is σ = 44610321490560. Its totient is φ = 4531842146304.

The previous prime is 15214322545217. The next prime is 15214322545243. The reversal of 15214322545240 is 4254522341251.

15214322545240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15214322545240² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 15214322545193 and 15214322545202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15214322545243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122872207 + ... + 122995966.

It is an arithmetic number, because the mean of its divisors is an integer number (348518136645).

Almost surely, 2^{15214322545240} is an apocalyptic number.

15214322545240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15214322545240 is an abundant number, since it is smaller than the sum of its proper divisors (29395998945320).

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

15214322545240 is a wasteful number, since it uses less digits than its factorization.

15214322545240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245868221 (or 245868217 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 15214322545240 its reverse (4254522341251), we get a palindrome (19468844886491).

The spelling of 15214322545240 in words is "fifteen trillion, two hundred fourteen billion, three hundred twenty-two million, five hundred forty-five thousand, two hundred forty".