142212029 has 2 divisors, whose sum is σ = 142212030. Its totient is φ = 142212028.

The previous prime is 142212019. The next prime is 142212041. The reversal of 142212029 is 920212241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94284100 + 47927929 = 9710^2 + 6923^2 .

It is a cyclic number.

It is not a de Polignac number, because 142212029 - 2¹⁶ = 142146493 is a prime.

It is a super-2 number, since 2×142212029² = 40448522384593682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142211995 and 142212013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142212019) by changing a digit.

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 as a sum of consecutive naturals, namely, 71106014 + 71106015.

It is an arithmetic number, because the mean of its divisors is an integer number (71106015).

Almost surely, 2^142212029 is an apocalyptic number.

It is an amenable number.

142212029 is a deficient number, since it is larger than the sum of its proper divisors (1).

142212029 is an equidigital number, since it uses as much as digits as its factorization.

142212029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 142212029 is about 11925.2685085075. The cubic root of 142212029 is about 521.9698815092.

The spelling of 142212029 in words is "one hundred forty-two million, two hundred twelve thousand, twenty-nine".