145512147 has 8 divisors (see below), whose sum is σ = 211654080. Its totient is φ = 88189160.

The previous prime is 145512137. The next prime is 145512151. The reversal of 145512147 is 741215541.

145512147 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 a cyclic number.

It is not a de Polignac number, because 145512147 - 2⁷ = 145512019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145512137) 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, 2204697 + ... + 2204762.

It is an arithmetic number, because the mean of its divisors is an integer number (26456760).

Almost surely, 2^145512147 is an apocalyptic number.

145512147 is a deficient number, since it is larger than the sum of its proper divisors (66141933).

145512147 is a wasteful number, since it uses less digits than its factorization.

145512147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4409473.

The product of its digits is 5600, while the sum is 30.

The square root of 145512147 is about 12062.8415806559. The cubic root of 145512147 is about 525.9765913142.

Adding to 145512147 its reverse (741215541), we get a palindrome (886727688).

The spelling of 145512147 in words is "one hundred forty-five million, five hundred twelve thousand, one hundred forty-seven".