1225451459 has 2 divisors, whose sum is σ = 1225451460. Its totient is φ = 1225451458.

The previous prime is 1225451449. The next prime is 1225451471. The reversal of 1225451459 is 9541545221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1225451459 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1225451429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612725729 + 612725730.

It is an arithmetic number, because the mean of its divisors is an integer number (612725730).

Almost surely, 2^1225451459 is an apocalyptic number.

1225451459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225451459 is an equidigital number, since it uses as much as digits as its factorization.

1225451459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 38.

The square root of 1225451459 is about 35006.4488201817. The cubic root of 1225451459 is about 1070.1189080885.

The spelling of 1225451459 in words is "one billion, two hundred twenty-five million, four hundred fifty-one thousand, four hundred fifty-nine".