142031031 has 8 divisors (see below), whose sum is σ = 189496944. Its totient is φ = 94626240.

The previous prime is 142031017. The next prime is 142031059. The reversal of 142031031 is 130130241.

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

It is not a de Polignac number, because 142031031 - 2¹¹ = 142028983 is a prime.

It is a super-2 number, since 2×142031031² = 40345627533845922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142031031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142031081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9550 + ... + 19371.

It is an arithmetic number, because the mean of its divisors is an integer number (23687118).

Almost surely, 2^142031031 is an apocalyptic number.

142031031 is a deficient number, since it is larger than the sum of its proper divisors (47465913).

142031031 is a wasteful number, since it uses less digits than its factorization.

142031031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30561.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 142031031 is about 11917.6772485246. The cubic root of 142031031 is about 521.7483446618.

Adding to 142031031 its reverse (130130241), we get a palindrome (272161272).

The spelling of 142031031 in words is "one hundred forty-two million, thirty-one thousand, thirty-one".