23146147 has 4 divisors (see below), whose sum is σ = 23944320. Its totient is φ = 22347976.

The previous prime is 23146139. The next prime is 23146177. The reversal of 23146147 is 74164132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23146147 - 2³ = 23146139 is a prime.

It is a super-3 number, since 3×23146147³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23146117) 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, 399043 + ... + 399100.

It is an arithmetic number, because the mean of its divisors is an integer number (5986080).

Almost surely, 2^23146147 is an apocalyptic number.

23146147 is a deficient number, since it is larger than the sum of its proper divisors (798173).

23146147 is an equidigital number, since it uses as much as digits as its factorization.

23146147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798172.

The product of its digits is 4032, while the sum is 28.

The square root of 23146147 is about 4811.0442733361. The cubic root of 23146147 is about 284.9877782796.

The spelling of 23146147 in words is "twenty-three million, one hundred forty-six thousand, one hundred forty-seven".