142020148 has 12 divisors (see below), whose sum is σ = 251328420. Its totient is φ = 70212032.

The previous prime is 142020119. The next prime is 142020149. The reversal of 142020148 is 841020241.

It can be written as a sum of positive squares in 2 ways, for example, as 17875984 + 124144164 = 4228^2 + 11142^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142020149) 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 3 ways as a sum of consecutive naturals, for example, 199111 + ... + 199822.

It is an arithmetic number, because the mean of its divisors is an integer number (20944035).

Almost surely, 2^142020148 is an apocalyptic number.

It is an amenable number.

142020148 is a deficient number, since it is larger than the sum of its proper divisors (109308272).

142020148 is a wasteful number, since it uses less digits than its factorization.

142020148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399026 (or 399024 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 142020148 is about 11917.2206491279. The cubic root of 142020148 is about 521.7350181556.

Adding to 142020148 its reverse (841020241), we get a palindrome (983040389).

The spelling of 142020148 in words is "one hundred forty-two million, twenty thousand, one hundred forty-eight".