1225074461 has 16 divisors (see below), whose sum is σ = 1421091840. Its totient is φ = 1046770560.

The previous prime is 1225074449. The next prime is 1225074467. The reversal of 1225074461 is 1644705221.

It is a cyclic number.

It is not a de Polignac number, because 1225074461 - 2¹⁴ = 1225058077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225074467) 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 in 15 ways as a sum of consecutive naturals, for example, 56816 + ... + 75353.

It is an arithmetic number, because the mean of its divisors is an integer number (88818240).

Almost surely, 2^1225074461 is an apocalyptic number.

It is an amenable number.

1225074461 is a deficient number, since it is larger than the sum of its proper divisors (196017379).

1225074461 is a wasteful number, since it uses less digits than its factorization.

1225074461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132236.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 1225074461 is about 35001.0637124074. The cubic root of 1225074461 is about 1070.0091596735.

Adding to 1225074461 its reverse (1644705221), we get a palindrome (2869779682).

The spelling of 1225074461 in words is "one billion, two hundred twenty-five million, seventy-four thousand, four hundred sixty-one".