1225314523 has 2 divisors, whose sum is σ = 1225314524. Its totient is φ = 1225314522.

The previous prime is 1225314509. The next prime is 1225314529. The reversal of 1225314523 is 3254135221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1225314523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1225314491 and 1225314500.

It is not a weakly prime, because it can be changed into another prime (1225314529) 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, 612657261 + 612657262.

It is an arithmetic number, because the mean of its divisors is an integer number (612657262).

Almost surely, 2^1225314523 is an apocalyptic number.

1225314523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225314523 is an equidigital number, since it uses as much as digits as its factorization.

1225314523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 28.

The square root of 1225314523 is about 35004.4928973410. The cubic root of 1225314523 is about 1070.0790470615.

Adding to 1225314523 its reverse (3254135221), we get a palindrome (4479449744).

It can be divided in two parts, 12 and 25314523, that multiplied together give a triangular number (303774276 = T₂₄₆₄₈).

The spelling of 1225314523 in words is "one billion, two hundred twenty-five million, three hundred fourteen thousand, five hundred twenty-three".