23132737 has 4 divisors (see below), whose sum is σ = 23361876. Its totient is φ = 22903600.

The previous prime is 23132731. The next prime is 23132741. The reversal of 23132737 is 73723132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20711601 + 2421136 = 4551^2 + 1556^2 .

It is a cyclic number.

It is not a de Polignac number, because 23132737 - 2¹⁵ = 23099969 is a prime.

It is a super-2 number, since 2×23132737² = 1070247042222338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23132731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114418 + ... + 114619.

It is an arithmetic number, because the mean of its divisors is an integer number (5840469).

Almost surely, 2^23132737 is an apocalyptic number.

It is an amenable number.

23132737 is a deficient number, since it is larger than the sum of its proper divisors (229139).

23132737 is a wasteful number, since it uses less digits than its factorization.

23132737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229138.

The product of its digits is 5292, while the sum is 28.

The square root of 23132737 is about 4809.6504030958. The cubic root of 23132737 is about 284.9327306096.

Adding to 23132737 its reverse (73723132), we get a palindrome (96855869).

It can be divided in two parts, 2313 and 2737, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 23132737 in words is "twenty-three million, one hundred thirty-two thousand, seven hundred thirty-seven".