23135450 has 24 divisors (see below), whose sum is σ = 46343388. Its totient is φ = 8542080.

The previous prime is 23135449. The next prime is 23135459. The reversal of 23135450 is 5453132.

It can be written as a sum of positive squares in 6 ways, for example, as 677329 + 22458121 = 823^2 + 4739^2 .

It is not an unprimeable number, because it can be changed into a prime (23135459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17147 + ... + 18446.

Almost surely, 2^23135450 is an apocalyptic number.

23135450 is an abundant number, since it is smaller than the sum of its proper divisors (23207938).

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

23135450 is a wasteful number, since it uses less digits than its factorization.

23135450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35618 (or 35613 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 23135450 is about 4809.9324319579. The cubic root of 23135450 is about 284.9438691140.

Adding to 23135450 its reverse (5453132), we get a palindrome (28588582).

The spelling of 23135450 in words is "twenty-three million, one hundred thirty-five thousand, four hundred fifty".