1022254251 has 32 divisors (see below), whose sum is σ = 1512235008. Its totient is φ = 610959360.

The previous prime is 1022254249. The next prime is 1022254291. The reversal of 1022254251 is 1524522201.

It is not a de Polignac number, because 1022254251 - 2¹ = 1022254249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1022254291) 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 in 31 ways as a sum of consecutive naturals, for example, 299766 + ... + 303156.

It is an arithmetic number, because the mean of its divisors is an integer number (47257344).

Almost surely, 2^1022254251 is an apocalyptic number.

1022254251 is a deficient number, since it is larger than the sum of its proper divisors (489980757).

1022254251 is a wasteful number, since it uses less digits than its factorization.

1022254251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3691.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1022254251 is about 31972.7110361320. The cubic root of 1022254251 is about 1007.3637261065.

Adding to 1022254251 its reverse (1524522201), we get a palindrome (2546776452).

The spelling of 1022254251 in words is "one billion, twenty-two million, two hundred fifty-four thousand, two hundred fifty-one".