1223672137 has 8 divisors (see below), whose sum is σ = 1230566400. Its totient is φ = 1216790880.

The previous prime is 1223672111. The next prime is 1223672147. The reversal of 1223672137 is 7312763221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223672137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223672147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231312 + ... + 236542.

It is an arithmetic number, because the mean of its divisors is an integer number (153820800).

Almost surely, 2^1223672137 is an apocalyptic number.

It is an amenable number.

1223672137 is a deficient number, since it is larger than the sum of its proper divisors (6894263).

1223672137 is a wasteful number, since it uses less digits than its factorization.

1223672137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6503.

The product of its digits is 21168, while the sum is 34.

The square root of 1223672137 is about 34981.0253851999. The cubic root of 1223672137 is about 1069.6007294189.

The spelling of 1223672137 in words is "one billion, two hundred twenty-three million, six hundred seventy-two thousand, one hundred thirty-seven".