23121464 has 8 divisors (see below), whose sum is σ = 43352760. Its totient is φ = 11560728.

The previous prime is 23121457. The next prime is 23121473. The reversal of 23121464 is 46412132.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent 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 as a sum of consecutive naturals, namely, 1445084 + ... + 1445099.

It is an arithmetic number, because the mean of its divisors is an integer number (5419095).

Almost surely, 2^23121464 is an apocalyptic number.

It is an amenable number.

23121464 is a deficient number, since it is larger than the sum of its proper divisors (20231296).

23121464 is a wasteful number, since it uses less digits than its factorization.

23121464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890189 (or 2890185 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 23121464 is about 4808.4783455892. The cubic root of 23121464 is about 284.8864388027.

Adding to 23121464 its reverse (46412132), we get a palindrome (69533596).

The spelling of 23121464 in words is "twenty-three million, one hundred twenty-one thousand, four hundred sixty-four".