1001142051 has 32 divisors (see below), whose sum is σ = 1650055680. Its totient is φ = 525775104.

The previous prime is 1001142049. The next prime is 1001142061. The reversal of 1001142051 is 1502411001.

It is a happy number.

It is not a de Polignac number, because 1001142051 - 2¹ = 1001142049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1001142051.

It is not an unprimeable number, because it can be changed into a prime (1001142061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55740 + ... + 71478.

It is an arithmetic number, because the mean of its divisors is an integer number (51564240).

Almost surely, 2^1001142051 is an apocalyptic number.

1001142051 is a deficient number, since it is larger than the sum of its proper divisors (648913629).

1001142051 is a wasteful number, since it uses less digits than its factorization.

1001142051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15995.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1001142051 is about 31640.8288608247. The cubic root of 1001142051 is about 1000.3805388385.

Adding to 1001142051 its reverse (1502411001), we get a palindrome (2503553052).

The spelling of 1001142051 in words is "one billion, one million, one hundred forty-two thousand, fifty-one".