23315000 has 40 divisors (see below), whose sum is σ = 54638760. Its totient is φ = 9324000.

The previous prime is 23314997. The next prime is 23315003. The reversal of 23315000 is 51332.

It is an interprime number because it is at equal distance from previous prime (23314997) and next prime (23315003).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23315003) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 2669 + ... + 7331.

It is an arithmetic number, because the mean of its divisors is an integer number (1365969).

Almost surely, 2^23315000 is an apocalyptic number.

23315000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23315000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27319380).

23315000 is an abundant number, since it is smaller than the sum of its proper divisors (31323760).

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

23315000 is an equidigital number, since it uses as much as digits as its factorization.

23315000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4689 (or 4670 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 23315000 is about 4828.5608622031. The cubic root of 23315000 is about 285.6791028106.

Adding to 23315000 its reverse (51332), we get a palindrome (23366332).

The spelling of 23315000 in words is "twenty-three million, three hundred fifteen thousand".