1145520601 has 2 divisors, whose sum is σ = 1145520602. Its totient is φ = 1145520600.

The previous prime is 1145520581. The next prime is 1145520611. The reversal of 1145520601 is 1060255411.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 628003600 + 517517001 = 25060^2 + 22749^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145520601 - 2¹³ = 1145512409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1145520611) 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, 572760300 + 572760301.

It is an arithmetic number, because the mean of its divisors is an integer number (572760301).

Almost surely, 2^1145520601 is an apocalyptic number.

It is an amenable number.

1145520601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145520601 is an equidigital number, since it uses as much as digits as its factorization.

1145520601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1145520601 is about 33845.5403413803. The cubic root of 1145520601 is about 1046.3274876461.

The spelling of 1145520601 in words is "one billion, one hundred forty-five million, five hundred twenty thousand, six hundred one".