2141541401540 has 36 divisors (see below), whose sum is σ = 4777341679236. Its totient is φ = 806227348992.

The previous prime is 2141541401477. The next prime is 2141541401581. The reversal of 2141541401540 is 451041451412.

It can be written as a sum of positive squares in 6 ways, for example, as 7324278724 + 2134217122816 = 85582^2 + 1460896^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2141541401497 and 2141541401506.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185248667 + ... + 185260226.

Almost surely, 2^{2141541401540} is an apocalyptic number.

2141541401540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2141541401540 is an abundant number, since it is smaller than the sum of its proper divisors (2635800277696).

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

2141541401540 is a wasteful number, since it uses less digits than its factorization.

2141541401540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370508936 (or 370508917 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

Adding to 2141541401540 its reverse (451041451412), we get a palindrome (2592582852952).

The spelling of 2141541401540 in words is "two trillion, one hundred forty-one billion, five hundred forty-one million, four hundred one thousand, five hundred forty".