142136650 has 12 divisors (see below), whose sum is σ = 264374262. Its totient is φ = 56854640.

The previous prime is 142136639. The next prime is 142136689. The reversal of 142136650 is 56631241.

It can be written as a sum of positive squares in 3 ways, for example, as 82646281 + 59490369 = 9091^2 + 7713^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1421317 + ... + 1421416.

Almost surely, 2^142136650 is an apocalyptic number.

142136650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142136650 is a deficient number, since it is larger than the sum of its proper divisors (122237612).

142136650 is a wasteful number, since it uses less digits than its factorization.

142136650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2842745 (or 2842740 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 142136650 is about 11922.1076156861. The cubic root of 142136650 is about 521.8776424263.

Adding to 142136650 its reverse (56631241), we get a palindrome (198767891).

The spelling of 142136650 in words is "one hundred forty-two million, one hundred thirty-six thousand, six hundred fifty".