1145315477 has 2 divisors, whose sum is σ = 1145315478. Its totient is φ = 1145315476.

The previous prime is 1145315453. The next prime is 1145315537. The reversal of 1145315477 is 7745135411.

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., 961062001 + 184253476 = 31001^2 + 13574^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145315477 - 2¹⁴ = 1145299093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1145315477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145315777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572657738 + 572657739.

It is an arithmetic number, because the mean of its divisors is an integer number (572657739).

Almost surely, 2^1145315477 is an apocalyptic number.

It is an amenable number.

1145315477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145315477 is an equidigital number, since it uses as much as digits as its factorization.

1145315477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58800, while the sum is 38.

The square root of 1145315477 is about 33842.5099098752. The cubic root of 1145315477 is about 1046.2650299619.

The spelling of 1145315477 in words is "one billion, one hundred forty-five million, three hundred fifteen thousand, four hundred seventy-seven".