1252771573 has 2 divisors, whose sum is σ = 1252771574. Its totient is φ = 1252771572.

The previous prime is 1252771529. The next prime is 1252771627. The reversal of 1252771573 is 3751772521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1198336689 + 54434884 = 34617^2 + 7378^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252771573 - 2²¹ = 1250674421 is a prime.

It is a super-2 number, since 2×1252771573² = 3138873228233788658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252777573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626385786 + 626385787.

It is an arithmetic number, because the mean of its divisors is an integer number (626385787).

Almost surely, 2^1252771573 is an apocalyptic number.

It is an amenable number.

1252771573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252771573 is an equidigital number, since it uses as much as digits as its factorization.

1252771573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102900, while the sum is 40.

The square root of 1252771573 is about 35394.5133177446. The cubic root of 1252771573 is about 1078.0129137138.

It can be divided in two parts, 12527 and 71573, that added together give a square (84100 = 290²).

The spelling of 1252771573 in words is "one billion, two hundred fifty-two million, seven hundred seventy-one thousand, five hundred seventy-three".