142205211 has 12 divisors (see below), whose sum is σ = 205671960. Its totient is φ = 94681440.

The previous prime is 142205197. The next prime is 142205227. The reversal of 142205211 is 112502241.

142205211 is a `hidden beast` number, since 142 + 2 + 0 + 521 + 1 = 666.

142205211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142205211 - 2¹³ = 142197019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142205411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2485 + ... + 17046.

It is an arithmetic number, because the mean of its divisors is an integer number (17139330).

Almost surely, 2^142205211 is an apocalyptic number.

142205211 is a deficient number, since it is larger than the sum of its proper divisors (63466749).

142205211 is a wasteful number, since it uses less digits than its factorization.

142205211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20346 (or 20343 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 142205211 is about 11924.9826414968. The cubic root of 142205211 is about 521.9615398625.

Adding to 142205211 its reverse (112502241), we get a palindrome (254707452).

It can be divided in two parts, 14 and 2205211, that added together give a square (2205225 = 1485²).

The spelling of 142205211 in words is "one hundred forty-two million, two hundred five thousand, two hundred eleven".