87143351 has 2 divisors, whose sum is σ = 87143352. Its totient is φ = 87143350.

The previous prime is 87143323. The next prime is 87143401. The reversal of 87143351 is 15334178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87143351 - 2²² = 82949047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87143051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43571675 + 43571676.

It is an arithmetic number, because the mean of its divisors is an integer number (43571676).

Almost surely, 2^87143351 is an apocalyptic number.

87143351 is a deficient number, since it is larger than the sum of its proper divisors (1).

87143351 is an equidigital number, since it uses as much as digits as its factorization.

87143351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 32.

The square root of 87143351 is about 9335.0603104640. The cubic root of 87143351 is about 443.3479983968.

The spelling of 87143351 in words is "eighty-seven million, one hundred forty-three thousand, three hundred fifty-one".