1161475001 has 2 divisors, whose sum is σ = 1161475002. Its totient is φ = 1161475000.

The previous prime is 1161474991. The next prime is 1161475039. The reversal of 1161475001 is 1005741611.

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., 1142778025 + 18696976 = 33805^2 + 4324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1161475001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1161475061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580737500 + 580737501.

It is an arithmetic number, because the mean of its divisors is an integer number (580737501).

Almost surely, 2^1161475001 is an apocalyptic number.

It is an amenable number.

1161475001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161475001 is an equidigital number, since it uses as much as digits as its factorization.

1161475001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 1161475001 is about 34080.4196130271. The cubic root of 1161475001 is about 1051.1627334206.

The spelling of 1161475001 in words is "one billion, one hundred sixty-one million, four hundred seventy-five thousand, one".