142203044 has 6 divisors (see below), whose sum is σ = 248855334. Its totient is φ = 71101520.

The previous prime is 142203031. The next prime is 142203053. The reversal of 142203044 is 440302241.

It can be written as a sum of positive squares in only one way, i.e., 135443044 + 6760000 = 11638^2 + 2600^2 .

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 as a sum of consecutive naturals, namely, 17775377 + ... + 17775384.

It is an arithmetic number, because the mean of its divisors is an integer number (41475889).

Almost surely, 2^142203044 is an apocalyptic number.

It is an amenable number.

142203044 is a deficient number, since it is larger than the sum of its proper divisors (106652290).

142203044 is a wasteful number, since it uses less digits than its factorization.

142203044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35550765 (or 35550763 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 142203044 is about 11924.8917814796. The cubic root of 142203044 is about 521.9588885382.

Adding to 142203044 its reverse (440302241), we get a palindrome (582505285).

The spelling of 142203044 in words is "one hundred forty-two million, two hundred three thousand, forty-four".