23134545 has 32 divisors (see below), whose sum is σ = 47005440. Its totient is φ = 10575360.

The previous prime is 23134543. The next prime is 23134567. The reversal of 23134545 is 54543132.

It is not a de Polignac number, because 23134545 - 2¹ = 23134543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23134541) 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, 11296 + ... + 13185.

It is an arithmetic number, because the mean of its divisors is an integer number (1468920).

Almost surely, 2^23134545 is an apocalyptic number.

It is an amenable number.

23134545 is an abundant number, since it is smaller than the sum of its proper divisors (23870895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23134545 is a wasteful number, since it uses less digits than its factorization.

23134545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24502 (or 24496 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 23134545 is about 4809.8383548722. The cubic root of 23134545 is about 284.9401536389.

Adding to 23134545 its reverse (54543132), we get a palindrome (77677677).

The spelling of 23134545 in words is "twenty-three million, one hundred thirty-four thousand, five hundred forty-five".