1223154313 has 2 divisors, whose sum is σ = 1223154314. Its totient is φ = 1223154312.

The previous prime is 1223154293. The next prime is 1223154337. The reversal of 1223154313 is 3134513221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 784168009 + 438986304 = 28003^2 + 20952^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223154313 - 2⁵ = 1223154281 is a prime.

It is a super-2 number, since 2×1223154313² = 2992212946821003938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1223151313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611577156 + 611577157.

It is an arithmetic number, because the mean of its divisors is an integer number (611577157).

Almost surely, 2^1223154313 is an apocalyptic number.

It is an amenable number.

1223154313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223154313 is an equidigital number, since it uses as much as digits as its factorization.

1223154313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 1223154313 is about 34973.6231037049. The cubic root of 1223154313 is about 1069.4498330427.

Adding to 1223154313 its reverse (3134513221), we get a palindrome (4357667534).

The spelling of 1223154313 in words is "one billion, two hundred twenty-three million, one hundred fifty-four thousand, three hundred thirteen".