645200151 has 8 divisors (see below), whose sum is σ = 873106944. Its totient is φ = 423713400.

The previous prime is 645200147. The next prime is 645200159. The reversal of 645200151 is 151002546.

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

It is not a de Polignac number, because 645200151 - 2² = 645200147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645200159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1604775 + ... + 1605176.

It is an arithmetic number, because the mean of its divisors is an integer number (109138368).

Almost surely, 2^645200151 is an apocalyptic number.

645200151 is a deficient number, since it is larger than the sum of its proper divisors (227906793).

645200151 is a wasteful number, since it uses less digits than its factorization.

645200151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3210021.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 645200151 is about 25400.7903617191. The cubic root of 645200151 is about 864.1016215454.

Adding to 645200151 its reverse (151002546), we get a palindrome (796202697).

The spelling of 645200151 in words is "six hundred forty-five million, two hundred thousand, one hundred fifty-one".