775147253 has 2 divisors, whose sum is σ = 775147254. Its totient is φ = 775147252.

The previous prime is 775147223. The next prime is 775147259. The reversal of 775147253 is 352741577.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 516516529 + 258630724 = 22727^2 + 16082^2 .

It is a cyclic number.

It is not a de Polignac number, because 775147253 - 2¹² = 775143157 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 775147253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (775147259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387573626 + 387573627.

It is an arithmetic number, because the mean of its divisors is an integer number (387573627).

Almost surely, 2^775147253 is an apocalyptic number.

It is an amenable number.

775147253 is a deficient number, since it is larger than the sum of its proper divisors (1).

775147253 is an equidigital number, since it uses as much as digits as its factorization.

775147253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 205800, while the sum is 41.

The square root of 775147253 is about 27841.4664304882. The cubic root of 775147253 is about 918.6034470423.

The spelling of 775147253 in words is "seven hundred seventy-five million, one hundred forty-seven thousand, two hundred fifty-three".