1205260051 has 2 divisors, whose sum is σ = 1205260052. Its totient is φ = 1205260050.

The previous prime is 1205260027. The next prime is 1205260061. The reversal of 1205260051 is 1500625021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1205260051 is a prime.

It is not a weakly prime, because it can be changed into another prime (1205260061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602630025 + 602630026.

It is an arithmetic number, because the mean of its divisors is an integer number (602630026).

Almost surely, 2^1205260051 is an apocalyptic number.

1205260051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205260051 is an equidigital number, since it uses as much as digits as its factorization.

1205260051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1205260051 is about 34716.8554307558. The cubic root of 1205260051 is about 1064.2089833322.

Adding to 1205260051 its reverse (1500625021), we get a palindrome (2705885072).

The spelling of 1205260051 in words is "one billion, two hundred five million, two hundred sixty thousand, fifty-one".