1972104543 has 8 divisors (see below), whose sum is σ = 2921636400. Its totient is φ = 1314736344.

The previous prime is 1972104539. The next prime is 1972104569. The reversal of 1972104543 is 3454012791.

1972104543 is a `hidden beast` number, since 1 + 9 + 7 + 2 + 104 + 543 = 666.

It is not a de Polignac number, because 1972104543 - 2² = 1972104539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1972104498 and 1972104507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972104583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36520428 + ... + 36520481.

It is an arithmetic number, because the mean of its divisors is an integer number (365204550).

Almost surely, 2^1972104543 is an apocalyptic number.

1972104543 is a deficient number, since it is larger than the sum of its proper divisors (949531857).

1972104543 is an equidigital number, since it uses as much as digits as its factorization.

1972104543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73040918 (or 73040912 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1972104543 is about 44408.3837017291. The cubic root of 1972104543 is about 1254.0359242015.

The spelling of 1972104543 in words is "one billion, nine hundred seventy-two million, one hundred four thousand, five hundred forty-three".