1157327293 has 2 divisors, whose sum is σ = 1157327294. Its totient is φ = 1157327292.

The previous prime is 1157327287. The next prime is 1157327333. The reversal of 1157327293 is 3927237511.

It is an a-pointer prime, because the next prime (1157327333) can be obtained adding 1157327293 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1088802009 + 68525284 = 32997^2 + 8278^2 .

It is a cyclic number.

It is not a de Polignac number, because 1157327293 - 2¹³ = 1157319101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1157327393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578663646 + 578663647.

It is an arithmetic number, because the mean of its divisors is an integer number (578663647).

Almost surely, 2^1157327293 is an apocalyptic number.

It is an amenable number.

1157327293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157327293 is an equidigital number, since it uses as much as digits as its factorization.

1157327293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 40.

The square root of 1157327293 is about 34019.5134150975. The cubic root of 1157327293 is about 1049.9099826080.

The spelling of 1157327293 in words is "one billion, one hundred fifty-seven million, three hundred twenty-seven thousand, two hundred ninety-three".