142144100 has 54 divisors (see below), whose sum is σ = 358824690. Its totient is φ = 48733440.

The previous prime is 142144069. The next prime is 142144103. The reversal of 142144100 is 1441241.

It can be written as a sum of positive squares in 3 ways, for example, as 200704 + 141943396 = 448^2 + 11914^2 .

It is not an unprimeable number, because it can be changed into a prime (142144103) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 9605 + ... + 19404.

Almost surely, 2^142144100 is an apocalyptic number.

142144100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142144100 is an abundant number, since it is smaller than the sum of its proper divisors (216680590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142144100 is a wasteful number, since it uses less digits than its factorization.

142144100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29037 (or 29023 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 142144100 is about 11922.4200563476. The cubic root of 142144100 is about 521.8867602260.

Adding to 142144100 its reverse (1441241), we get a palindrome (143585341).

The spelling of 142144100 in words is "one hundred forty-two million, one hundred forty-four thousand, one hundred".