1020244142 has 16 divisors (see below), whose sum is σ = 1586159520. Its totient is φ = 491777568.

The previous prime is 1020244139. The next prime is 1020244151. The reversal of 1020244142 is 2414420201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55178 + ... + 71309.

It is an arithmetic number, because the mean of its divisors is an integer number (99134970).

Almost surely, 2^1020244142 is an apocalyptic number.

1020244142 is a deficient number, since it is larger than the sum of its proper divisors (565915378).

1020244142 is a wasteful number, since it uses less digits than its factorization.

1020244142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126635.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1020244142 is about 31941.2608079268. The cubic root of 1020244142 is about 1006.7030165132.

Adding to 1020244142 its reverse (2414420201), we get a palindrome (3434664343).

The spelling of 1020244142 in words is "one billion, twenty million, two hundred forty-four thousand, one hundred forty-two".