1225255151 has 2 divisors, whose sum is σ = 1225255152. Its totient is φ = 1225255150.

The previous prime is 1225255123. The next prime is 1225255169. The reversal of 1225255151 is 1515525221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1225255151 - 2¹⁴ = 1225238767 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225255121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612627575 + 612627576.

It is an arithmetic number, because the mean of its divisors is an integer number (612627576).

Almost surely, 2^1225255151 is an apocalyptic number.

1225255151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225255151 is an equidigital number, since it uses as much as digits as its factorization.

1225255151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5000, while the sum is 29.

The square root of 1225255151 is about 35003.6448245036. The cubic root of 1225255151 is about 1070.0617634013.

The spelling of 1225255151 in words is "one billion, two hundred twenty-five million, two hundred fifty-five thousand, one hundred fifty-one".