1023423549 has 8 divisors (see below), whose sum is σ = 1379897280. Its totient is φ = 674616096.

The previous prime is 1023423547. The next prime is 1023423559. The reversal of 1023423549 is 9453243201.

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

It is not a de Polignac number, because 1023423549 - 2¹ = 1023423547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023423547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1916257 + ... + 1916790.

It is an arithmetic number, because the mean of its divisors is an integer number (172487160).

Almost surely, 2^1023423549 is an apocalyptic number.

It is an amenable number.

1023423549 is a deficient number, since it is larger than the sum of its proper divisors (356473731).

1023423549 is an equidigital number, since it uses as much as digits as its factorization.

1023423549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3833139.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1023423549 is about 31990.9916851604. The cubic root of 1023423549 is about 1007.7476682814.

The spelling of 1023423549 in words is "one billion, twenty-three million, four hundred twenty-three thousand, five hundred forty-nine".