142043031 has 64 divisors (see below), whose sum is σ = 243264000. Its totient is φ = 81406944.

The previous prime is 142042997. The next prime is 142043047. The reversal of 142043031 is 130340241.

It is not a de Polignac number, because 142043031 - 2⁷ = 142042903 is a prime.

It is a super-2 number, since 2×142043031² = 40352445311333922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142042995 and 142043013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142043051) 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 63 ways as a sum of consecutive naturals, for example, 2407480 + ... + 2407538.

It is an arithmetic number, because the mean of its divisors is an integer number (3801000).

Almost surely, 2^142043031 is an apocalyptic number.

142043031 is a deficient number, since it is larger than the sum of its proper divisors (101220969).

142043031 is an equidigital number, since it uses as much as digits as its factorization.

142043031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 142043031 is about 11918.1806916996. The cubic root of 142043031 is about 521.7630381735.

Adding to 142043031 its reverse (130340241), we get a palindrome (272383272).

The spelling of 142043031 in words is "one hundred forty-two million, forty-three thousand, thirty-one".