1022154401 has 2 divisors, whose sum is σ = 1022154402. Its totient is φ = 1022154400.

The previous prime is 1022154391. The next prime is 1022154403. The reversal of 1022154401 is 1044512201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 661724176 + 360430225 = 25724^2 + 18985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022154401 is a prime.

Together with 1022154403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1022154403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511077200 + 511077201.

It is an arithmetic number, because the mean of its divisors is an integer number (511077201).

Almost surely, 2^1022154401 is an apocalyptic number.

It is an amenable number.

1022154401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022154401 is an equidigital number, since it uses as much as digits as its factorization.

1022154401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1022154401 is about 31971.1495101443. The cubic root of 1022154401 is about 1007.3309265223.

Adding to 1022154401 its reverse (1044512201), we get a palindrome (2066666602).

The spelling of 1022154401 in words is "one billion, twenty-two million, one hundred fifty-four thousand, four hundred one".