18152207 has 4 divisors (see below), whose sum is σ = 18312960. Its totient is φ = 17991456.

The previous prime is 18152203. The next prime is 18152213. The reversal of 18152207 is 70225181.

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

It is a cyclic number.

It is not a de Polignac number, because 18152207 - 2² = 18152203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18152203) 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, 80207 + ... + 80432.

It is an arithmetic number, because the mean of its divisors is an integer number (4578240).

Almost surely, 2^18152207 is an apocalyptic number.

18152207 is a deficient number, since it is larger than the sum of its proper divisors (160753).

18152207 is a wasteful number, since it uses less digits than its factorization.

18152207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160752.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 18152207 is about 4260.5406933862. The cubic root of 18152207 is about 262.8107618144.

Adding to 18152207 its reverse (70225181), we get a palindrome (88377388).

The spelling of 18152207 in words is "eighteen million, one hundred fifty-two thousand, two hundred seven".