651361201 has 2 divisors, whose sum is σ = 651361202. Its totient is φ = 651361200.

The previous prime is 651361189. The next prime is 651361229. The reversal of 651361201 is 102163156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 645210801 + 6150400 = 25401^2 + 2480^2 .

It is a cyclic number.

It is not a de Polignac number, because 651361201 - 2¹¹ = 651359153 is a prime.

It is not a weakly prime, because it can be changed into another prime (651361231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325680600 + 325680601.

It is an arithmetic number, because the mean of its divisors is an integer number (325680601).

Almost surely, 2^651361201 is an apocalyptic number.

It is an amenable number.

651361201 is a deficient number, since it is larger than the sum of its proper divisors (1).

651361201 is an equidigital number, since it uses as much as digits as its factorization.

651361201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 651361201 is about 25521.7789544538. The cubic root of 651361201 is about 866.8433634958.

The spelling of 651361201 in words is "six hundred fifty-one million, three hundred sixty-one thousand, two hundred one".