146442147 has 8 divisors (see below), whose sum is σ = 195364944. Its totient is φ = 97573728.

The previous prime is 146442143. The next prime is 146442193. The reversal of 146442147 is 741244641.

146442147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 146442147 - 2² = 146442143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146442143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6828 + ... + 18425.

It is an arithmetic number, because the mean of its divisors is an integer number (24420618).

Almost surely, 2^146442147 is an apocalyptic number.

146442147 is a deficient number, since it is larger than the sum of its proper divisors (48922797).

146442147 is a wasteful number, since it uses less digits than its factorization.

146442147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27189.

The product of its digits is 21504, while the sum is 33.

The square root of 146442147 is about 12101.3283155197. The cubic root of 146442147 is about 527.0947564037.

Adding to 146442147 its reverse (741244641), we get a palindrome (887686788).

The spelling of 146442147 in words is "one hundred forty-six million, four hundred forty-two thousand, one hundred forty-seven".