1165503457 has 2 divisors, whose sum is σ = 1165503458. Its totient is φ = 1165503456.

The previous prime is 1165503421. The next prime is 1165503467. The reversal of 1165503457 is 7543055611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1064782161 + 100721296 = 32631^2 + 10036^2 .

It is a cyclic number.

It is not a de Polignac number, because 1165503457 - 2⁷ = 1165503329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1165503407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582751728 + 582751729.

It is an arithmetic number, because the mean of its divisors is an integer number (582751729).

Almost surely, 2^1165503457 is an apocalyptic number.

It is an amenable number.

1165503457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165503457 is an equidigital number, since it uses as much as digits as its factorization.

1165503457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 1165503457 is about 34139.4706608055. The cubic root of 1165503457 is about 1052.3766141941.

The spelling of 1165503457 in words is "one billion, one hundred sixty-five million, five hundred three thousand, four hundred fifty-seven".