23135236 has 12 divisors (see below), whose sum is σ = 42617680. Its totient is φ = 10958760.

The previous prime is 23135197. The next prime is 23135251. The reversal of 23135236 is 63253132.

It is a happy number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 23135236.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152130 + ... + 152281.

Almost surely, 2^23135236 is an apocalyptic number.

It is an amenable number.

23135236 is a deficient number, since it is larger than the sum of its proper divisors (19482444).

23135236 is a wasteful number, since it uses less digits than its factorization.

23135236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304434 (or 304432 counting only the distinct ones).

The product of its digits is 3240, while the sum is 25.

The square root of 23135236 is about 4809.9101862717. The cubic root of 23135236 is about 284.9429905463.

Adding to 23135236 its reverse (63253132), we get a palindrome (86388368).

It can be divided in two parts, 23135 and 236, that multiplied together give a triangular number (5459860 = T₃₃₀₄).

The spelling of 23135236 in words is "twenty-three million, one hundred thirty-five thousand, two hundred thirty-six".