146143242 has 96 divisors (see below), whose sum is σ = 380989440. Its totient is φ = 39584160.

The previous prime is 146143211. The next prime is 146143253. The reversal of 146143242 is 242341641.

It is a happy number.

146143242 is a `hidden beast` number, since 1 + 4 + 614 + 3 + 2 + 42 = 666.

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 47 ways as a sum of consecutive naturals, for example, 611359 + ... + 611597.

It is an arithmetic number, because the mean of its divisors is an integer number (3968640).

Almost surely, 2^146143242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146143242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190494720).

146143242 is an abundant number, since it is smaller than the sum of its proper divisors (234846198).

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

146143242 is a wasteful number, since it uses less digits than its factorization.

146143242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 485 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 146143242 is about 12088.9719165858. The cubic root of 146143242 is about 526.7358921094.

Adding to 146143242 its reverse (242341641), we get a palindrome (388484883).

The spelling of 146143242 in words is "one hundred forty-six million, one hundred forty-three thousand, two hundred forty-two".