87102451 has 2 divisors, whose sum is σ = 87102452. Its totient is φ = 87102450.

The previous prime is 87102439. The next prime is 87102497. The reversal of 87102451 is 15420178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87102451 - 2⁹ = 87101939 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87102151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43551225 + 43551226.

It is an arithmetic number, because the mean of its divisors is an integer number (43551226).

Almost surely, 2^87102451 is an apocalyptic number.

87102451 is a deficient number, since it is larger than the sum of its proper divisors (1).

87102451 is an equidigital number, since it uses as much as digits as its factorization.

87102451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 87102451 is about 9332.8693872785. The cubic root of 87102451 is about 443.2786269894.

The spelling of 87102451 in words is "eighty-seven million, one hundred two thousand, four hundred fifty-one".