1223720095 has 16 divisors (see below), whose sum is σ = 1674449280. Its totient is φ = 850512384.

The previous prime is 1223720089. The next prime is 1223720117. The reversal of 1223720095 is 5900273221.

It is a cyclic number.

It is not a de Polignac number, because 1223720095 - 2⁵ = 1223720063 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 552615 + ... + 554824.

It is an arithmetic number, because the mean of its divisors is an integer number (104653080).

Almost surely, 2^1223720095 is an apocalyptic number.

1223720095 is a deficient number, since it is larger than the sum of its proper divisors (450729185).

1223720095 is a wasteful number, since it uses less digits than its factorization.

1223720095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107474.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 1223720095 is about 34981.7108643931. The cubic root of 1223720095 is about 1069.6147024541.

The spelling of 1223720095 in words is "one billion, two hundred twenty-three million, seven hundred twenty thousand, ninety-five".