23126145 has 32 divisors (see below), whose sum is σ = 42501888. Its totient is φ = 10518528.

The previous prime is 23126143. The next prime is 23126149. The reversal of 23126145 is 54162132.

It is not a de Polignac number, because 23126145 - 2¹ = 23126143 is a prime.

It is a super-2 number, since 2×23126145² = 1069637165122050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23126143) 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, 26557 + ... + 27413.

It is an arithmetic number, because the mean of its divisors is an integer number (1328184).

Almost surely, 2^23126145 is an apocalyptic number.

It is an amenable number.

23126145 is a deficient number, since it is larger than the sum of its proper divisors (19375743).

23126145 is a wasteful number, since it uses less digits than its factorization.

23126145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129.

The product of its digits is 1440, while the sum is 24.

The square root of 23126145 is about 4808.9650653753. The cubic root of 23126145 is about 284.9056628368.

Adding to 23126145 its reverse (54162132), we get a palindrome (77288277).

The spelling of 23126145 in words is "twenty-three million, one hundred twenty-six thousand, one hundred forty-five".