141531215405440 has 128 divisors (see below), whose sum is σ = 395676139288320. Its totient is φ = 47396499978240.

The previous prime is 141531215405431. The next prime is 141531215405441. The reversal of 141531215405440 is 44504512135141.

It is a tau number, because it is divible by the number of its divisors (128).

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 = 141531215405393 and 141531215405402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141531215405441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367153746 + ... + 367539025.

It is an arithmetic number, because the mean of its divisors is an integer number (3091219838190).

Almost surely, 2^{141531215405440} is an apocalyptic number.

141531215405440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141531215405440 is an abundant number, since it is smaller than the sum of its proper divisors (254144923882880).

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

141531215405440 is an equidigital number, since it uses as much as digits as its factorization.

141531215405440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734692840 (or 734692828 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 141531215405440 in words is "one hundred forty-one trillion, five hundred thirty-one billion, two hundred fifteen million, four hundred five thousand, four hundred forty".