23137805 has 8 divisors (see below), whose sum is σ = 27910392. Its totient is φ = 18413568.

The previous prime is 23137781. The next prime is 23137819. The reversal of 23137805 is 50873132.

It can be written as a sum of positive squares in 4 ways, for example, as 537289 + 22600516 = 733^2 + 4754^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23137805 - 2¹⁴ = 23121421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11024 + ... + 12953.

It is an arithmetic number, because the mean of its divisors is an integer number (3488799).

Almost surely, 2^23137805 is an apocalyptic number.

It is an amenable number.

23137805 is a deficient number, since it is larger than the sum of its proper divisors (4772587).

23137805 is a wasteful number, since it uses less digits than its factorization.

23137805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24175.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 23137805 is about 4810.1772316621. The cubic root of 23137805 is about 284.9535371061.

The spelling of 23137805 in words is "twenty-three million, one hundred thirty-seven thousand, eight hundred five".