659251 has 2 divisors, whose sum is σ = 659252. Its totient is φ = 659250.

The previous prime is 659237. The next prime is 659279. The reversal of 659251 is 152956.

659251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (659279) can be obtained adding 659251 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-659251 is a prime.

It is a super-2 number, since 2×659251² = 869223762002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (659221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329625 + 329626.

It is an arithmetic number, because the mean of its divisors is an integer number (329626).

2⁶⁵⁹²⁵¹ is an apocalyptic number.

659251 is a deficient number, since it is larger than the sum of its proper divisors (1).

659251 is an equidigital number, since it uses as much as digits as its factorization.

659251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 28.

The square root of 659251 is about 811.9427319707. The cubic root of 659251 is about 87.0329289188.

It can be divided in two parts, 65 and 9251, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 659251 in words is "six hundred fifty-nine thousand, two hundred fifty-one".