1223140399 has 8 divisors (see below), whose sum is σ = 1317782480. Its totient is φ = 1128577536.

The previous prime is 1223140393. The next prime is 1223140403. The reversal of 1223140399 is 9930413221.

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

It is a cyclic number.

It is not a de Polignac number, because 1223140399 - 2⁵ = 1223140367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223140393) 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, 14479 + ... + 51535.

It is an arithmetic number, because the mean of its divisors is an integer number (164722810).

Almost surely, 2^1223140399 is an apocalyptic number.

1223140399 is a deficient number, since it is larger than the sum of its proper divisors (94642081).

1223140399 is a wasteful number, since it uses less digits than its factorization.

1223140399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39609.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 1223140399 is about 34973.4241817984. The cubic root of 1223140399 is about 1069.4457778495.

The spelling of 1223140399 in words is "one billion, two hundred twenty-three million, one hundred forty thousand, three hundred ninety-nine".