1225641124 has 6 divisors (see below), whose sum is σ = 2144871974. Its totient is φ = 612820560.

The previous prime is 1225641119. The next prime is 1225641127. The reversal of 1225641124 is 4211465221.

It can be written as a sum of positive squares in only one way, i.e., 802022400 + 423618724 = 28320^2 + 20582^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1225641092 and 1225641101.

It is not an unprimeable number, because it can be changed into a prime (1225641127) 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, 153205137 + ... + 153205144.

Almost surely, 2^1225641124 is an apocalyptic number.

It is an amenable number.

1225641124 is a deficient number, since it is larger than the sum of its proper divisors (919230850).

1225641124 is a wasteful number, since it uses less digits than its factorization.

1225641124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306410285 (or 306410283 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 1225641124 is about 35009.1577162319. The cubic root of 1225641124 is about 1070.1741132216.

The spelling of 1225641124 in words is "one billion, two hundred twenty-five million, six hundred forty-one thousand, one hundred twenty-four".