142620236 has 12 divisors (see below), whose sum is σ = 272275080. Its totient is φ = 64827360.

The previous prime is 142620229. The next prime is 142620239. The reversal of 142620236 is 632026241.

It is not an unprimeable number, because it can be changed into a prime (142620239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1620641 + ... + 1620728.

It is an arithmetic number, because the mean of its divisors is an integer number (22689590).

Almost surely, 2^142620236 is an apocalyptic number.

It is an amenable number.

142620236 is a deficient number, since it is larger than the sum of its proper divisors (129654844).

142620236 is a wasteful number, since it uses less digits than its factorization.

142620236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3241384 (or 3241382 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 142620236 is about 11942.3714562896. The cubic root of 142620236 is about 522.4688271506.

Adding to 142620236 its reverse (632026241), we get a palindrome (774646477).

The spelling of 142620236 in words is "one hundred forty-two million, six hundred twenty thousand, two hundred thirty-six".