23215146 has 8 divisors (see below), whose sum is σ = 46430304. Its totient is φ = 7738380.

The previous prime is 23215139. The next prime is 23215151. The reversal of 23215146 is 64151232.

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

23215146 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1934590 + ... + 1934601.

It is an arithmetic number, because the mean of its divisors is an integer number (5803788).

Almost surely, 2^23215146 is an apocalyptic number.

23215146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23215146 is a wasteful number, since it uses less digits than its factorization.

23215146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3869196.

The product of its digits is 1440, while the sum is 24.

The square root of 23215146 is about 4818.2098335378. The cubic root of 23215146 is about 285.2706815865.

Adding to 23215146 its reverse (64151232), we get a palindrome (87366378).

The spelling of 23215146 in words is "twenty-three million, two hundred fifteen thousand, one hundred forty-six".