146289547 has 4 divisors (see below), whose sum is σ = 146425216. Its totient is φ = 146153880.

The previous prime is 146289509. The next prime is 146289571. The reversal of 146289547 is 745982641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 745982641 = 37 ⋅20161693.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146289547 is a prime.

It is a super-2 number, since 2×146289547² = 42801263122930418, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146289497 and 146289506.

It is not an unprimeable number, because it can be changed into a prime (146289047) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 66204 + ... + 68377.

It is an arithmetic number, because the mean of its divisors is an integer number (36606304).

Almost surely, 2^146289547 is an apocalyptic number.

146289547 is a deficient number, since it is larger than the sum of its proper divisors (135669).

146289547 is a wasteful number, since it uses less digits than its factorization.

146289547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135668.

The product of its digits is 483840, while the sum is 46.

The square root of 146289547 is about 12095.0215791457. The cubic root of 146289547 is about 526.9116064553.

The spelling of 146289547 in words is "one hundred forty-six million, two hundred eighty-nine thousand, five hundred forty-seven".