1540022433133 has 4 divisors (see below), whose sum is σ = 1542584867068. Its totient is φ = 1537459999200.

The previous prime is 1540022433097. The next prime is 1540022433161. The reversal of 1540022433133 is 3313342200451.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 713665075369 + 826357357764 = 844787^2 + 909042^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1540022433133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1540022433095 and 1540022433104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540022437133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281216066 + ... + 1281217267.

It is an arithmetic number, because the mean of its divisors is an integer number (385646216767).

Almost surely, 2^{1540022433133} is an apocalyptic number.

It is an amenable number.

1540022433133 is a deficient number, since it is larger than the sum of its proper divisors (2562433935).

1540022433133 is an equidigital number, since it uses as much as digits as its factorization.

1540022433133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562433934.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 1540022433133 its reverse (3313342200451), we get a palindrome (4853364633584).

The spelling of 1540022433133 in words is "one trillion, five hundred forty billion, twenty-two million, four hundred thirty-three thousand, one hundred thirty-three".