1572340543 has 4 divisors (see below), whose sum is σ = 1581986968. Its totient is φ = 1562694120.

The previous prime is 1572340541. The next prime is 1572340633. The reversal of 1572340543 is 3450432751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3450432751 = 811 ⋅4254541.

It is a cyclic number.

It is not a de Polignac number, because 1572340543 - 2¹ = 1572340541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1572340499 and 1572340508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572340541) 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 in 3 ways as a sum of consecutive naturals, for example, 4822968 + ... + 4823293.

It is an arithmetic number, because the mean of its divisors is an integer number (395496742).

Almost surely, 2^1572340543 is an apocalyptic number.

1572340543 is a deficient number, since it is larger than the sum of its proper divisors (9646425).

1572340543 is an equidigital number, since it uses as much as digits as its factorization.

1572340543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9646424.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 1572340543 is about 39652.7495011380. The cubic root of 1572340543 is about 1162.8281524441.

The spelling of 1572340543 in words is "one billion, five hundred seventy-two million, three hundred forty thousand, five hundred forty-three".