1223672205 has 32 divisors (see below), whose sum is σ = 2241186048. Its totient is φ = 558489600.

The previous prime is 1223672201. The next prime is 1223672231. The reversal of 1223672205 is 5022763221.

It is not a de Polignac number, because 1223672205 - 2² = 1223672201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223672201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58215 + ... + 76395.

It is an arithmetic number, because the mean of its divisors is an integer number (70037064).

Almost surely, 2^1223672205 is an apocalyptic number.

1223672205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1223672205 is a deficient number, since it is larger than the sum of its proper divisors (1017513843).

1223672205 is a wasteful number, since it uses less digits than its factorization.

1223672205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18837.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1223672205 is about 34981.0263571554. The cubic root of 1223672205 is about 1069.6007492316.

The spelling of 1223672205 in words is "one billion, two hundred twenty-three million, six hundred seventy-two thousand, two hundred five".