651610241 has 4 divisors (see below), whose sum is σ = 653579184. Its totient is φ = 649641300.

The previous prime is 651610181. The next prime is 651610259. The reversal of 651610241 is 142016156.

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 651610241 - 2¹⁴ = 651593857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 651610241.

It is not an unprimeable number, because it can be changed into a prime (651610291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983975 + ... + 984636.

It is an arithmetic number, because the mean of its divisors is an integer number (163394796).

Almost surely, 2^651610241 is an apocalyptic number.

It is an amenable number.

651610241 is a deficient number, since it is larger than the sum of its proper divisors (1968943).

651610241 is a wasteful number, since it uses less digits than its factorization.

651610241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968942.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 651610241 is about 25526.6574584296. The cubic root of 651610241 is about 866.9538250768.

Adding to 651610241 its reverse (142016156), we get a palindrome (793626397).

The spelling of 651610241 in words is "six hundred fifty-one million, six hundred ten thousand, two hundred forty-one".