1223070872 has 8 divisors (see below), whose sum is σ = 2293257900. Its totient is φ = 611535432.

The previous prime is 1223070859. The next prime is 1223070881. The reversal of 1223070872 is 2780703221.

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

It is a congruent number.

It is an unprimeable number.

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, 76441922 + ... + 76441937.

Almost surely, 2^1223070872 is an apocalyptic number.

It is an amenable number.

1223070872 is a deficient number, since it is larger than the sum of its proper divisors (1070187028).

1223070872 is a wasteful number, since it uses less digits than its factorization.

1223070872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152883865 (or 152883861 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 1223070872 is about 34972.4301700640. The cubic root of 1223070872 is about 1069.4255139546.

The spelling of 1223070872 in words is "one billion, two hundred twenty-three million, seventy thousand, eight hundred seventy-two".