23151446 has 4 divisors (see below), whose sum is σ = 34727172. Its totient is φ = 11575722.

The previous prime is 23151437. The next prime is 23151473. The reversal of 23151446 is 64415132.

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

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, 5787860 + ... + 5787863.

It is an arithmetic number, because the mean of its divisors is an integer number (8681793).

Almost surely, 2^23151446 is an apocalyptic number.

23151446 is a deficient number, since it is larger than the sum of its proper divisors (11575726).

23151446 is a wasteful number, since it uses less digits than its factorization.

23151446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11575725.

The product of its digits is 2880, while the sum is 26.

The square root of 23151446 is about 4811.5949538589. The cubic root of 23151446 is about 285.0095246637.

Adding to 23151446 its reverse (64415132), we get a palindrome (87566578).

The spelling of 23151446 in words is "twenty-three million, one hundred fifty-one thousand, four hundred forty-six".