1225335493 has 2 divisors, whose sum is σ = 1225335494. Its totient is φ = 1225335492.

The previous prime is 1225335491. The next prime is 1225335499. The reversal of 1225335493 is 3945335221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1223740324 + 1595169 = 34982^2 + 1263^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225335493 - 2¹ = 1225335491 is a prime.

Together with 1225335491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225335491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612667746 + 612667747.

It is an arithmetic number, because the mean of its divisors is an integer number (612667747).

Almost surely, 2^1225335493 is an apocalyptic number.

It is an amenable number.

1225335493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225335493 is an equidigital number, since it uses as much as digits as its factorization.

1225335493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 37.

The square root of 1225335493 is about 35004.7924290375. The cubic root of 1225335493 is about 1070.0851514614.

The spelling of 1225335493 in words is "one billion, two hundred twenty-five million, three hundred thirty-five thousand, four hundred ninety-three".