23931061 has 24 divisors (see below), whose sum is σ = 31436640. Its totient is φ = 17992800.

The previous prime is 23931031. The next prime is 23931071. The reversal of 23931061 is 16013932.

It is not a de Polignac number, because 23931061 - 2⁹ = 23930549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23931031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14866 + ... + 16396.

It is an arithmetic number, because the mean of its divisors is an integer number (1309860).

Almost surely, 2^23931061 is an apocalyptic number.

It is an amenable number.

23931061 is a deficient number, since it is larger than the sum of its proper divisors (7505579).

23931061 is a wasteful number, since it uses less digits than its factorization.

23931061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585 (or 1578 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 23931061 is about 4891.9383683771. The cubic root of 23931061 is about 288.1734624072.

Adding to 23931061 its reverse (16013932), we get a palindrome (39944993).

The spelling of 23931061 in words is "twenty-three million, nine hundred thirty-one thousand, sixty-one".