20237001 has 4 divisors (see below), whose sum is σ = 26982672. Its totient is φ = 13491332.

The previous prime is 20236973. The next prime is 20237003. The reversal of 20237001 is 10073202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20237001 - 2¹⁰ = 20235977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20237003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3372831 + ... + 3372836.

It is an arithmetic number, because the mean of its divisors is an integer number (6745668).

Almost surely, 2^20237001 is an apocalyptic number.

It is an amenable number.

20237001 is a deficient number, since it is larger than the sum of its proper divisors (6745671).

20237001 is an equidigital number, since it uses as much as digits as its factorization.

20237001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6745670.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 20237001 is about 4498.5554348035. Note that the first 3 decimals coincide. The cubic root of 20237001 is about 272.5097535998.

The spelling of 20237001 in words is "twenty million, two hundred thirty-seven thousand, one".