142126205 has 16 divisors (see below), whose sum is σ = 194476464. Its totient is φ = 98780160.

The previous prime is 142126199. The next prime is 142126211. The reversal of 142126205 is 502621241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (142126199) and next prime (142126211).

It can be written as a sum of positive squares in 8 ways, for example, as 17156164 + 124970041 = 4142^2 + 11179^2 .

It is not a de Polignac number, because 142126205 - 2⁶ = 142126141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63206 + ... + 65415.

It is an arithmetic number, because the mean of its divisors is an integer number (12154779).

Almost surely, 2^142126205 is an apocalyptic number.

It is an amenable number.

142126205 is a deficient number, since it is larger than the sum of its proper divisors (52350259).

142126205 is a wasteful number, since it uses less digits than its factorization.

142126205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128656.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 142126205 is about 11921.6695558969. The cubic root of 142126205 is about 521.8648586123.

Adding to 142126205 its reverse (502621241), we get a palindrome (644747446).

The spelling of 142126205 in words is "one hundred forty-two million, one hundred twenty-six thousand, two hundred five".