1264043071 has 2 divisors, whose sum is σ = 1264043072. Its totient is φ = 1264043070.

The previous prime is 1264043023. The next prime is 1264043111. The reversal of 1264043071 is 1703404621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1264043071 - 2⁷ = 1264042943 is a prime.

It is a super-2 number, since 2×1264043071² = 3195609770686222082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1264043171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632021535 + 632021536.

It is an arithmetic number, because the mean of its divisors is an integer number (632021536).

Almost surely, 2^1264043071 is an apocalyptic number.

1264043071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264043071 is an equidigital number, since it uses as much as digits as its factorization.

1264043071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1264043071 is about 35553.3833973646. The cubic root of 1264043071 is about 1081.2363159706.

Adding to 1264043071 its reverse (1703404621), we get a palindrome (2967447692).

The spelling of 1264043071 in words is "one billion, two hundred sixty-four million, forty-three thousand, seventy-one".