1023142 has 8 divisors (see below), whose sum is σ = 1570536. Its totient is φ = 499632.

The previous prime is 1023133. The next prime is 1023163. The reversal of 1023142 is 2413201.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5863 + ... + 6034.

It is an arithmetic number, because the mean of its divisors is an integer number (196317).

2^1023142 is an apocalyptic number.

1023142 is a deficient number, since it is larger than the sum of its proper divisors (547394).

1023142 is a wasteful number, since it uses less digits than its factorization.

1023142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11942.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1023142 is about 1011.5048195634. The cubic root of 1023142 is about 100.7655247644.

Adding to 1023142 its reverse (2413201), we get a palindrome (3436343).

The spelling of 1023142 in words is "one million, twenty-three thousand, one hundred forty-two".