252777149 has 2 divisors, whose sum is σ = 252777150. Its totient is φ = 252777148.

The previous prime is 252777073. The next prime is 252777191. The reversal of 252777149 is 941777252.

252777149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249071524 + 3705625 = 15782^2 + 1925^2 .

It is a cyclic number.

It is not a de Polignac number, because 252777149 - 2²⁰ = 251728573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252771149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126388574 + 126388575.

It is an arithmetic number, because the mean of its divisors is an integer number (126388575).

Almost surely, 2^252777149 is an apocalyptic number.

It is an amenable number.

252777149 is a deficient number, since it is larger than the sum of its proper divisors (1).

252777149 is an equidigital number, since it uses as much as digits as its factorization.

252777149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 246960, while the sum is 44.

The square root of 252777149 is about 15898.9669161238. The cubic root of 252777149 is about 632.2845993289.

The spelling of 252777149 in words is "two hundred fifty-two million, seven hundred seventy-seven thousand, one hundred forty-nine".