87151751 has 2 divisors, whose sum is σ = 87151752. Its totient is φ = 87151750.

The previous prime is 87151717. The next prime is 87151759. The reversal of 87151751 is 15715178.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87151751 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87151759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43575875 + 43575876.

It is an arithmetic number, because the mean of its divisors is an integer number (43575876).

Almost surely, 2^87151751 is an apocalyptic number.

87151751 is a deficient number, since it is larger than the sum of its proper divisors (1).

87151751 is an equidigital number, since it uses as much as digits as its factorization.

87151751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9800, while the sum is 35.

The square root of 87151751 is about 9335.5102163728. The cubic root of 87151751 is about 443.3622431383.

The spelling of 87151751 in words is "eighty-seven million, one hundred fifty-one thousand, seven hundred fifty-one".