1071405457 has 2 divisors, whose sum is σ = 1071405458. Its totient is φ = 1071405456.

The previous prime is 1071405443. The next prime is 1071405463. The reversal of 1071405457 is 7545041701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 569824641 + 501580816 = 23871^2 + 22396^2 .

It is an emirp because it is prime and its reverse (7545041701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1071405457 - 2¹⁵ = 1071372689 is a prime.

It is a super-2 number, since 2×1071405457² = 2295819306578757698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1071405437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535702728 + 535702729.

It is an arithmetic number, because the mean of its divisors is an integer number (535702729).

Almost surely, 2^1071405457 is an apocalyptic number.

It is an amenable number.

1071405457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071405457 is an equidigital number, since it uses as much as digits as its factorization.

1071405457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 1071405457 is about 32732.3304547660. The cubic root of 1071405457 is about 1023.2567495895.

The spelling of 1071405457 in words is "one billion, seventy-one million, four hundred five thousand, four hundred fifty-seven".