1031142161 has 8 divisors (see below), whose sum is σ = 1178786304. Its totient is φ = 883582560.

The previous prime is 1031142149. The next prime is 1031142197. The reversal of 1031142161 is 1612411301.

It is a happy number.

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

It is not a de Polignac number, because 1031142161 - 2⁶ = 1031142097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031142121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7616 + ... + 46046.

It is an arithmetic number, because the mean of its divisors is an integer number (147348288).

Almost surely, 2^1031142161 is an apocalyptic number.

It is an amenable number.

1031142161 is a deficient number, since it is larger than the sum of its proper divisors (147644143).

1031142161 is an equidigital number, since it uses as much as digits as its factorization.

1031142161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42271.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1031142161 is about 32111.4023518127. The cubic root of 1031142161 is about 1010.2747875011.

Adding to 1031142161 its reverse (1612411301), we get a palindrome (2643553462).

The spelling of 1031142161 in words is "one billion, thirty-one million, one hundred forty-two thousand, one hundred sixty-one".