1005111142 has 32 divisors (see below), whose sum is σ = 1779056640. Its totient is φ = 416884320.

The previous prime is 1005111137. The next prime is 1005111167. The reversal of 1005111142 is 2411115001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93859 + ... + 104017.

It is an arithmetic number, because the mean of its divisors is an integer number (55595520).

Almost surely, 2^1005111142 is an apocalyptic number.

1005111142 is a deficient number, since it is larger than the sum of its proper divisors (773945498).

1005111142 is a wasteful number, since it uses less digits than its factorization.

1005111142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10396.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1005111142 is about 31703.4878522853. The cubic root of 1005111142 is about 1001.7008195727.

Adding to 1005111142 its reverse (2411115001), we get a palindrome (3416226143).

The spelling of 1005111142 in words is "one billion, five million, one hundred eleven thousand, one hundred forty-two".