1241456551 has 2 divisors, whose sum is σ = 1241456552. Its totient is φ = 1241456550.

The previous prime is 1241456519. The next prime is 1241456609. The reversal of 1241456551 is 1556541421.

It is a weak prime.

It is an emirp because it is prime and its reverse (1556541421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1241456551 - 2⁵ = 1241456519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1241456651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620728275 + 620728276.

It is an arithmetic number, because the mean of its divisors is an integer number (620728276).

Almost surely, 2^1241456551 is an apocalyptic number.

1241456551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241456551 is an equidigital number, since it uses as much as digits as its factorization.

1241456551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24000, while the sum is 34.

The square root of 1241456551 is about 35234.3092879653. The cubic root of 1241456551 is about 1074.7575587398.

Adding to 1241456551 its reverse (1556541421), we get a palindrome (2797997972).

The spelling of 1241456551 in words is "one billion, two hundred forty-one million, four hundred fifty-six thousand, five hundred fifty-one".