131022142 has 32 divisors (see below), whose sum is σ = 206569440. Its totient is φ = 62277120.

The previous prime is 131022137. The next prime is 131022163. The reversal of 131022142 is 241220131.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 956298 + ... + 956434.

It is an arithmetic number, because the mean of its divisors is an integer number (6455295).

Almost surely, 2^131022142 is an apocalyptic number.

131022142 is a deficient number, since it is larger than the sum of its proper divisors (75547298).

131022142 is a wasteful number, since it uses less digits than its factorization.

131022142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 131022142 is about 11446.4903791512. The cubic root of 131022142 is about 507.9039203872.

Adding to 131022142 its reverse (241220131), we get a palindrome (372242273).

The spelling of 131022142 in words is "one hundred thirty-one million, twenty-two thousand, one hundred forty-two".