1225260043 has 6 divisors (see below), whose sum is σ = 1425302556. Its totient is φ = 1050222852.

The previous prime is 1225260041. The next prime is 1225260053. The reversal of 1225260043 is 3400625221.

It is not a de Polignac number, because 1225260043 - 2¹ = 1225260041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225260041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12502605 + ... + 12502702.

It is an arithmetic number, because the mean of its divisors is an integer number (237550426).

Almost surely, 2^1225260043 is an apocalyptic number.

1225260043 is a deficient number, since it is larger than the sum of its proper divisors (200042513).

1225260043 is an equidigital number, since it uses as much as digits as its factorization.

1225260043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25005321 (or 25005314 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1225260043 is about 35003.7147028712. The cubic root of 1225260043 is about 1070.0631875224.

Adding to 1225260043 its reverse (3400625221), we get a palindrome (4625885264).

The spelling of 1225260043 in words is "one billion, two hundred twenty-five million, two hundred sixty thousand, forty-three".