1225214413 has 2 divisors, whose sum is σ = 1225214414. Its totient is φ = 1225214412.

The previous prime is 1225214401. The next prime is 1225214467. The reversal of 1225214413 is 3144125221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1071776644 + 153437769 = 32738^2 + 12387^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225214413 - 2⁵ = 1225214381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225214483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612607206 + 612607207.

It is an arithmetic number, because the mean of its divisors is an integer number (612607207).

Almost surely, 2^1225214413 is an apocalyptic number.

It is an amenable number.

1225214413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225214413 is an equidigital number, since it uses as much as digits as its factorization.

1225214413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 25.

The square root of 1225214413 is about 35003.0629088370. The cubic root of 1225214413 is about 1070.0499039234.

Adding to 1225214413 its reverse (3144125221), we get a palindrome (4369339634).

The spelling of 1225214413 in words is "one billion, two hundred twenty-five million, two hundred fourteen thousand, four hundred thirteen".