1225151441 has 2 divisors, whose sum is σ = 1225151442. Its totient is φ = 1225151440.

The previous prime is 1225151401. The next prime is 1225151467. The reversal of 1225151441 is 1441515221.

It is a happy number.

It is an a-pointer prime, because the next prime (1225151467) can be obtained adding 1225151441 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1223950225 + 1201216 = 34985^2 + 1096^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225151441 - 2⁶ = 1225151377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1225151441.

It is not a weakly prime, because it can be changed into another prime (1225151401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612575720 + 612575721.

It is an arithmetic number, because the mean of its divisors is an integer number (612575721).

Almost surely, 2^1225151441 is an apocalyptic number.

It is an amenable number.

1225151441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225151441 is an equidigital number, since it uses as much as digits as its factorization.

1225151441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1600, while the sum is 26.

The square root of 1225151441 is about 35002.1633759972. The cubic root of 1225151441 is about 1070.0315712582.

Adding to 1225151441 its reverse (1441515221), we get a palindrome (2666666662).

The spelling of 1225151441 in words is "one billion, two hundred twenty-five million, one hundred fifty-one thousand, four hundred forty-one".