1157993533 has 2 divisors, whose sum is σ = 1157993534. Its totient is φ = 1157993532.

The previous prime is 1157993503. The next prime is 1157993587. The reversal of 1157993533 is 3353997511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1142642809 + 15350724 = 33803^2 + 3918^2 .

It is a cyclic number.

It is not a de Polignac number, because 1157993533 - 2⁹ = 1157993021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1157993503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578996766 + 578996767.

It is an arithmetic number, because the mean of its divisors is an integer number (578996767).

Almost surely, 2^1157993533 is an apocalyptic number.

It is an amenable number.

1157993533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157993533 is an equidigital number, since it uses as much as digits as its factorization.

1157993533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 382725, while the sum is 46.

The square root of 1157993533 is about 34029.3040334357. The cubic root of 1157993533 is about 1050.1114116097. Note that the first 3 decimals are identical.

The spelling of 1157993533 in words is "one billion, one hundred fifty-seven million, nine hundred ninety-three thousand, five hundred thirty-three".