1575342047 has 2 divisors, whose sum is σ = 1575342048. Its totient is φ = 1575342046.

The previous prime is 1575341987. The next prime is 1575342053. The reversal of 1575342047 is 7402435751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1575342047 - 2²⁸ = 1306906591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1575342047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1575342347) 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 as a sum of consecutive naturals, namely, 787671023 + 787671024.

It is an arithmetic number, because the mean of its divisors is an integer number (787671024).

Almost surely, 2^1575342047 is an apocalyptic number.

1575342047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1575342047 is an equidigital number, since it uses as much as digits as its factorization.

1575342047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 1575342047 is about 39690.5788191606. The cubic root of 1575342047 is about 1163.5676052377.

Adding to 1575342047 its reverse (7402435751), we get a palindrome (8977777798).

The spelling of 1575342047 in words is "one billion, five hundred seventy-five million, three hundred forty-two thousand, forty-seven".