20130207 has 8 divisors (see below), whose sum is σ = 26916480. Its totient is φ = 13382040.

The previous prime is 20130203. The next prime is 20130223. The reversal of 20130207 is 70203102.

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

It is not a de Polignac number, because 20130207 - 2² = 20130203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8269 + ... + 10422.

It is an arithmetic number, because the mean of its divisors is an integer number (3364560).

Almost surely, 2^20130207 is an apocalyptic number.

20130207 is a deficient number, since it is larger than the sum of its proper divisors (6786273).

20130207 is a wasteful number, since it uses less digits than its factorization.

20130207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19053.

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

The square root of 20130207 is about 4486.6699232281. The cubic root of 20130207 is about 272.0295482245.

Adding to 20130207 its reverse (70203102), we get a palindrome (90333309).

The spelling of 20130207 in words is "twenty million, one hundred thirty thousand, two hundred seven".