1973744522 has 4 divisors (see below), whose sum is σ = 2960616786. Its totient is φ = 986872260.

The previous prime is 1973744519. The next prime is 1973744527. The reversal of 1973744522 is 2254473791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2254473791 = 31 ⋅72724961.

It can be written as a sum of positive squares in only one way, i.e., 1338754921 + 634989601 = 36589^2 + 25199^2 .

It is not an unprimeable number, because it can be changed into a prime (1973744527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493436129 + ... + 493436132.

Almost surely, 2^1973744522 is an apocalyptic number.

1973744522 is a deficient number, since it is larger than the sum of its proper divisors (986872264).

1973744522 is an equidigital number, since it uses as much as digits as its factorization.

1973744522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986872263.

The product of its digits is 423360, while the sum is 44.

The square root of 1973744522 is about 44426.8446099878. The cubic root of 1973744522 is about 1254.3834417426.

The spelling of 1973744522 in words is "one billion, nine hundred seventy-three million, seven hundred forty-four thousand, five hundred twenty-two".