146204247 has 8 divisors (see below), whose sum is σ = 222787456. Its totient is φ = 83545272.

The previous prime is 146204239. The next prime is 146204281. The reversal of 146204247 is 742402641.

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

It is not a de Polignac number, because 146204247 - 2³ = 146204239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146204287) 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, 3481033 + ... + 3481074.

It is an arithmetic number, because the mean of its divisors is an integer number (27848432).

Almost surely, 2^146204247 is an apocalyptic number.

146204247 is a deficient number, since it is larger than the sum of its proper divisors (76583209).

146204247 is an equidigital number, since it uses as much as digits as its factorization.

146204247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6962117.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 146204247 is about 12091.4948207407. The cubic root of 146204247 is about 526.8091742138.

Adding to 146204247 its reverse (742402641), we get a palindrome (888606888).

The spelling of 146204247 in words is "one hundred forty-six million, two hundred four thousand, two hundred forty-seven".