146420242 has 4 divisors (see below), whose sum is σ = 219630366. Its totient is φ = 73210120.

The previous prime is 146420233. The next prime is 146420279. The reversal of 146420242 is 242024641.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 113827561 + 32592681 = 10669^2 + 5709^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36605059 + ... + 36605062.

Almost surely, 2^146420242 is an apocalyptic number.

146420242 is a deficient number, since it is larger than the sum of its proper divisors (73210124).

146420242 is an equidigital number, since it uses as much as digits as its factorization.

146420242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73210123.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 146420242 is about 12100.4232157392. The cubic root of 146420242 is about 527.0684739283.

Adding to 146420242 its reverse (242024641), we get a palindrome (388444883).

The spelling of 146420242 in words is "one hundred forty-six million, four hundred twenty thousand, two hundred forty-two".