1575240323 has 2 divisors, whose sum is σ = 1575240324. Its totient is φ = 1575240322.

The previous prime is 1575240311. The next prime is 1575240343. The reversal of 1575240323 is 3230425751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1575240323 - 2²⁴ = 1558463107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1575240323.

It is not a weakly prime, because it can be changed into another prime (1575240343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 787620161 + 787620162.

It is an arithmetic number, because the mean of its divisors is an integer number (787620162).

Almost surely, 2^1575240323 is an apocalyptic number.

1575240323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1575240323 is an equidigital number, since it uses as much as digits as its factorization.

1575240323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 1575240323 is about 39689.2973356798. The cubic root of 1575240323 is about 1163.5425598199.

The spelling of 1575240323 in words is "one billion, five hundred seventy-five million, two hundred forty thousand, three hundred twenty-three".