1170440657 has 2 divisors, whose sum is σ = 1170440658. Its totient is φ = 1170440656.

The previous prime is 1170440639. The next prime is 1170440749. The reversal of 1170440657 is 7560440711.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1154368576 + 16072081 = 33976^2 + 4009^2 .

It is a cyclic number.

It is not a de Polignac number, because 1170440657 - 2¹⁶ = 1170375121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1170440627) 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, 585220328 + 585220329.

It is an arithmetic number, because the mean of its divisors is an integer number (585220329).

Almost surely, 2^1170440657 is an apocalyptic number.

It is an amenable number.

1170440657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1170440657 is an equidigital number, since it uses as much as digits as its factorization.

1170440657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 1170440657 is about 34211.7035091794. The cubic root of 1170440657 is about 1053.8605149512.

The spelling of 1170440657 in words is "one billion, one hundred seventy million, four hundred forty thousand, six hundred fifty-seven".