1020143938 has 16 divisors (see below), whose sum is σ = 1669851936. Its totient is φ = 463555840.

The previous prime is 1020143921. The next prime is 1020143959. The reversal of 1020143938 is 8393410201.

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, 97845 + ... + 107767.

It is an arithmetic number, because the mean of its divisors is an integer number (104365746).

Almost surely, 2^1020143938 is an apocalyptic number.

1020143938 is a deficient number, since it is larger than the sum of its proper divisors (649707998).

1020143938 is a wasteful number, since it uses less digits than its factorization.

1020143938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14609.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1020143938 is about 31939.6922026497. The cubic root of 1020143938 is about 1006.6700574178.

The spelling of 1020143938 in words is "one billion, twenty million, one hundred forty-three thousand, nine hundred thirty-eight".