23540141 has 4 divisors (see below), whose sum is σ = 24351900. Its totient is φ = 22728384.

The previous prime is 23540137. The next prime is 23540147. The reversal of 23540141 is 14104532.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14600041 + 8940100 = 3821^2 + 2990^2 .

It is a cyclic number.

It is not a de Polignac number, because 23540141 - 2² = 23540137 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 (23540147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405836 + ... + 405893.

It is an arithmetic number, because the mean of its divisors is an integer number (6087975).

Almost surely, 2^23540141 is an apocalyptic number.

It is an amenable number.

23540141 is a deficient number, since it is larger than the sum of its proper divisors (811759).

23540141 is an equidigital number, since it uses as much as digits as its factorization.

23540141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811758.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 23540141 is about 4851.8183189398. The cubic root of 23540141 is about 286.5957109103.

Adding to 23540141 its reverse (14104532), we get a palindrome (37644673).

The spelling of 23540141 in words is "twenty-three million, five hundred forty thousand, one hundred forty-one".