23121485 has 8 divisors (see below), whose sum is σ = 28495896. Its totient is φ = 17997120.

The previous prime is 23121481. The next prime is 23121491. The reversal of 23121485 is 58412132.

It can be written as a sum of positive squares in 4 ways, for example, as 1087849 + 22033636 = 1043^2 + 4694^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23121485 - 2² = 23121481 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 (23121481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62306 + ... + 62675.

It is an arithmetic number, because the mean of its divisors is an integer number (3561987).

Almost surely, 2^23121485 is an apocalyptic number.

It is an amenable number.

23121485 is a deficient number, since it is larger than the sum of its proper divisors (5374411).

23121485 is a wasteful number, since it uses less digits than its factorization.

23121485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125023.

The product of its digits is 1920, while the sum is 26.

The square root of 23121485 is about 4808.4805292317. The cubic root of 23121485 is about 284.8865250518.

The spelling of 23121485 in words is "twenty-three million, one hundred twenty-one thousand, four hundred eighty-five".