87133127 has 2 divisors, whose sum is σ = 87133128. Its totient is φ = 87133126.

The previous prime is 87133099. The next prime is 87133133. The reversal of 87133127 is 72133178.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87133127 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 87133093 and 87133102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87133727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43566563 + 43566564.

It is an arithmetic number, because the mean of its divisors is an integer number (43566564).

Almost surely, 2^87133127 is an apocalyptic number.

87133127 is a deficient number, since it is larger than the sum of its proper divisors (1).

87133127 is an equidigital number, since it uses as much as digits as its factorization.

87133127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 32.

The square root of 87133127 is about 9334.5126814419. The cubic root of 87133127 is about 443.3306592762.

The spelling of 87133127 in words is "eighty-seven million, one hundred thirty-three thousand, one hundred twenty-seven".