142202031 has 16 divisors (see below), whose sum is σ = 198132480. Its totient is φ = 90548480.

The previous prime is 142201999. The next prime is 142202057. The reversal of 142202031 is 130202241.

It is a cyclic number.

It is not a de Polignac number, because 142202031 - 2⁵ = 142201999 is a prime.

It is a super-2 number, since 2×142202031² = 40442835241049922, 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 142202031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142202231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74335 + ... + 76223.

It is an arithmetic number, because the mean of its divisors is an integer number (12383280).

Almost surely, 2^142202031 is an apocalyptic number.

142202031 is a deficient number, since it is larger than the sum of its proper divisors (55930449).

142202031 is a wasteful number, since it uses less digits than its factorization.

142202031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 142202031 is about 11924.8493072240. The cubic root of 142202031 is about 521.9576491235.

Adding to 142202031 its reverse (130202241), we get a palindrome (272404272).

The spelling of 142202031 in words is "one hundred forty-two million, two hundred two thousand, thirty-one".