2087167531 has 2 divisors, whose sum is σ = 2087167532. Its totient is φ = 2087167530.

The previous prime is 2087167513. The next prime is 2087167541. The reversal of 2087167531 is 1357617802.

Together with previous prime (2087167513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2087167531 - 2¹³ = 2087159339 is a prime.

It is a super-2 number, since 2×2087167531² = 8712536604921271922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2087167501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1043583765 + 1043583766.

It is an arithmetic number, because the mean of its divisors is an integer number (1043583766).

Almost surely, 2^2087167531 is an apocalyptic number.

2087167531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2087167531 is an equidigital number, since it uses as much as digits as its factorization.

2087167531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 2087167531 is about 45685.5286825051. The cubic root of 2087167531 is about 1277.9654223058.

The spelling of 2087167531 in words is "two billion, eighty-seven million, one hundred sixty-seven thousand, five hundred thirty-one".