1023142447 has 16 divisors (see below), whose sum is σ = 1059200064. Its totient is φ = 987840000.

The previous prime is 1023142409. The next prime is 1023142499. The reversal of 1023142447 is 7442413201.

It is a cyclic number.

It is not a de Polignac number, because 1023142447 - 2⁷ = 1023142319 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 (1023142147) 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, 1459197 + ... + 1459897.

It is an arithmetic number, because the mean of its divisors is an integer number (66200004).

Almost surely, 2^1023142447 is an apocalyptic number.

1023142447 is a deficient number, since it is larger than the sum of its proper divisors (36057617).

1023142447 is an equidigital number, since it uses as much as digits as its factorization.

1023142447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 1023142447 is about 31986.5979278822. The cubic root of 1023142447 is about 1007.6553943885.

Adding to 1023142447 its reverse (7442413201), we get a palindrome (8465555648).

The spelling of 1023142447 in words is "one billion, twenty-three million, one hundred forty-two thousand, four hundred forty-seven".