1540021134422 has 16 divisors (see below), whose sum is σ = 2345354613360. Its totient is φ = 758244546048.

The previous prime is 1540021134383. The next prime is 1540021134433. The reversal of 1540021134422 is 2244311200451.

It is a happy number.

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, 1697147 + ... + 2441382.

It is an arithmetic number, because the mean of its divisors is an integer number (146584663335).

Almost surely, 2^{1540021134422} is an apocalyptic number.

1540021134422 is a deficient number, since it is larger than the sum of its proper divisors (805333478938).

1540021134422 is a wasteful number, since it uses less digits than its factorization.

1540021134422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141375.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 1540021134422 its reverse (2244311200451), we get a palindrome (3784332334873).

The spelling of 1540021134422 in words is "one trillion, five hundred forty billion, twenty-one million, one hundred thirty-four thousand, four hundred twenty-two".