23135541 has 32 divisors (see below), whose sum is σ = 36556800. Its totient is φ = 12830400.

The previous prime is 23135537. The next prime is 23135543. The reversal of 23135541 is 14553132.

It is not a de Polignac number, because 23135541 - 2² = 23135537 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23135543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85236 + ... + 85506.

It is an arithmetic number, because the mean of its divisors is an integer number (1142400).

Almost surely, 2^23135541 is an apocalyptic number.

It is an amenable number.

23135541 is a deficient number, since it is larger than the sum of its proper divisors (13421259).

23135541 is a wasteful number, since it uses less digits than its factorization.

23135541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497.

The product of its digits is 1800, while the sum is 24.

The square root of 23135541 is about 4809.9418915409. The cubic root of 23135541 is about 284.9442427089.

Adding to 23135541 its reverse (14553132), we get a palindrome (37688673).

The spelling of 23135541 in words is "twenty-three million, one hundred thirty-five thousand, five hundred forty-one".