23151142 has 32 divisors (see below), whose sum is σ = 41477184. Its totient is φ = 9484800.

The previous prime is 23151109. The next prime is 23151181. The reversal of 23151142 is 24115132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30042 + ... + 30802.

It is an arithmetic number, because the mean of its divisors is an integer number (1296162).

Almost surely, 2^23151142 is an apocalyptic number.

23151142 is a deficient number, since it is larger than the sum of its proper divisors (18326042).

23151142 is a wasteful number, since it uses less digits than its factorization.

23151142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864.

The product of its digits is 240, while the sum is 19.

The square root of 23151142 is about 4811.5633633986. The cubic root of 23151142 is about 285.0082771783.

Adding to 23151142 its reverse (24115132), we get a palindrome (47266274).

The spelling of 23151142 in words is "twenty-three million, one hundred fifty-one thousand, one hundred forty-two".