1223001659 has 16 divisors (see below), whose sum is σ = 1406250720. Its totient is φ = 1053212160.

The previous prime is 1223001653. The next prime is 1223001673. The reversal of 1223001659 is 9561003221.

It is not a de Polignac number, because 1223001659 - 2²⁸ = 954566203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223001653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19262 + ... + 53075.

It is an arithmetic number, because the mean of its divisors is an integer number (87890670).

Almost surely, 2^1223001659 is an apocalyptic number.

1223001659 is a deficient number, since it is larger than the sum of its proper divisors (183249061).

1223001659 is a wasteful number, since it uses less digits than its factorization.

1223001659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72430.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1223001659 is about 34971.4406194540. The cubic root of 1223001659 is about 1069.4053408133.

The spelling of 1223001659 in words is "one billion, two hundred twenty-three million, one thousand, six hundred fifty-nine".