146238142 has 8 divisors (see below), whose sum is σ = 219436056. Its totient is φ = 73092792.

The previous prime is 146238137. The next prime is 146238143. The reversal of 146238142 is 241832641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×146238142² = 42771188351224328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146238143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5233 + ... + 17884.

It is an arithmetic number, because the mean of its divisors is an integer number (27429507).

Almost surely, 2^146238142 is an apocalyptic number.

146238142 is a deficient number, since it is larger than the sum of its proper divisors (73197914).

146238142 is a wasteful number, since it uses less digits than its factorization.

146238142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26282.

The product of its digits is 9216, while the sum is 31.

The square root of 146238142 is about 12092.8963445487. The cubic root of 146238142 is about 526.8498816889.

The spelling of 146238142 in words is "one hundred forty-six million, two hundred thirty-eight thousand, one hundred forty-two".