146284291 has 4 divisors (see below), whose sum is σ = 146429712. Its totient is φ = 146138872.

The previous prime is 146284277. The next prime is 146284297. The reversal of 146284291 is 192482641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 192482641 = 13 ⋅14806357.

It is a cyclic number.

It is not a de Polignac number, because 146284291 - 2²³ = 137895683 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 146284291.

It is not an unprimeable number, because it can be changed into a prime (146284297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71191 + ... + 73216.

It is an arithmetic number, because the mean of its divisors is an integer number (36607428).

Almost surely, 2^146284291 is an apocalyptic number.

146284291 is a deficient number, since it is larger than the sum of its proper divisors (145421).

146284291 is a wasteful number, since it uses less digits than its factorization.

146284291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145420.

The product of its digits is 27648, while the sum is 37.

The square root of 146284291 is about 12094.8042977140. The cubic root of 146284291 is about 526.9052959553.

The spelling of 146284291 in words is "one hundred forty-six million, two hundred eighty-four thousand, two hundred ninety-one".