87130259 has 2 divisors, whose sum is σ = 87130260. Its totient is φ = 87130258.

The previous prime is 87130229. The next prime is 87130273. The reversal of 87130259 is 95203178.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87130259 - 2¹² = 87126163 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87130229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43565129 + 43565130.

It is an arithmetic number, because the mean of its divisors is an integer number (43565130).

Almost surely, 2^87130259 is an apocalyptic number.

87130259 is a deficient number, since it is larger than the sum of its proper divisors (1).

87130259 is an equidigital number, since it uses as much as digits as its factorization.

87130259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 87130259 is about 9334.3590567323. The cubic root of 87130259 is about 443.3257951244.

The spelling of 87130259 in words is "eighty-seven million, one hundred thirty thousand, two hundred fifty-nine".