1253022439 has 2 divisors, whose sum is σ = 1253022440. Its totient is φ = 1253022438.

The previous prime is 1253022389. The next prime is 1253022461. The reversal of 1253022439 is 9342203521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1253022439 - 2¹³ = 1253014247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1253022439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1253022479) 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, 626511219 + 626511220.

It is an arithmetic number, because the mean of its divisors is an integer number (626511220).

Almost surely, 2^1253022439 is an apocalyptic number.

1253022439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253022439 is an equidigital number, since it uses as much as digits as its factorization.

1253022439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1253022439 is about 35398.0569946996. The cubic root of 1253022439 is about 1078.0848658409.

It can be divided in two parts, 12530 and 22439, that added together give a square (34969 = 187²).

The spelling of 1253022439 in words is "one billion, two hundred fifty-three million, twenty-two thousand, four hundred thirty-nine".