106212142 has 4 divisors (see below), whose sum is σ = 159318216. Its totient is φ = 53106070.

The previous prime is 106212133. The next prime is 106212143. The reversal of 106212142 is 241212601.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×106212142² = 22562038216456328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106212143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26553034 + ... + 26553037.

It is an arithmetic number, because the mean of its divisors is an integer number (39829554).

Almost surely, 2^106212142 is an apocalyptic number.

106212142 is a deficient number, since it is larger than the sum of its proper divisors (53106074).

106212142 is an equidigital number, since it uses as much as digits as its factorization.

106212142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53106073.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 106212142 is about 10305.9275176958. The cubic root of 106212142 is about 473.5778582932.

Adding to 106212142 its reverse (241212601), we get a palindrome (347424743).

The spelling of 106212142 in words is "one hundred six million, two hundred twelve thousand, one hundred forty-two".