652087109 has 2 divisors, whose sum is σ = 652087110. Its totient is φ = 652087108.

The previous prime is 652087091. The next prime is 652087123. The reversal of 652087109 is 901780256.

Together with previous prime (652087091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 600103009 + 51984100 = 24497^2 + 7210^2 .

It is a cyclic number.

It is not a de Polignac number, because 652087109 - 2¹² = 652083013 is a prime.

It is equal to p_33896333 and since 652087109 and 33896333 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (652087199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326043554 + 326043555.

It is an arithmetic number, because the mean of its divisors is an integer number (326043555).

Almost surely, 2^652087109 is an apocalyptic number.

It is an amenable number.

652087109 is a deficient number, since it is larger than the sum of its proper divisors (1).

652087109 is an equidigital number, since it uses as much as digits as its factorization.

652087109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 652087109 is about 25535.9963385022. The cubic root of 652087109 is about 867.1652611470.

The spelling of 652087109 in words is "six hundred fifty-two million, eighty-seven thousand, one hundred nine".