1225731704 has 8 divisors (see below), whose sum is σ = 2298246960. Its totient is φ = 612865848.

The previous prime is 1225731697. The next prime is 1225731707. The reversal of 1225731704 is 4071375221.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225731707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76608224 + ... + 76608239.

It is an arithmetic number, because the mean of its divisors is an integer number (287280870).

Almost surely, 2^1225731704 is an apocalyptic number.

It is an amenable number.

1225731704 is a deficient number, since it is larger than the sum of its proper divisors (1072515256).

1225731704 is a wasteful number, since it uses less digits than its factorization.

1225731704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153216469 (or 153216465 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 1225731704 is about 35010.4513538458. The cubic root of 1225731704 is about 1070.2004760183.

The spelling of 1225731704 in words is "one billion, two hundred twenty-five million, seven hundred thirty-one thousand, seven hundred four".