1245152071 has 2 divisors, whose sum is σ = 1245152072. Its totient is φ = 1245152070.

The previous prime is 1245152039. The next prime is 1245152123. The reversal of 1245152071 is 1702515421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1245152071 - 2⁵ = 1245152039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1245153071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622576035 + 622576036.

It is an arithmetic number, because the mean of its divisors is an integer number (622576036).

Almost surely, 2^1245152071 is an apocalyptic number.

1245152071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245152071 is an equidigital number, since it uses as much as digits as its factorization.

1245152071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 1245152071 is about 35286.7123858259. The cubic root of 1245152071 is about 1075.8229346036.

Adding to 1245152071 its reverse (1702515421), we get a palindrome (2947667492).

The spelling of 1245152071 in words is "one billion, two hundred forty-five million, one hundred fifty-two thousand, seventy-one".