102087551 has 12 divisors (see below), whose sum is σ = 110669832. Its totient is φ = 94088304.

The previous prime is 102087541. The next prime is 102087599. The reversal of 102087551 is 155780201.

It is not a de Polignac number, because 102087551 - 2¹⁸ = 101825407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102087541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9536 + ... + 17178.

It is an arithmetic number, because the mean of its divisors is an integer number (9222486).

Almost surely, 2^102087551 is an apocalyptic number.

102087551 is a deficient number, since it is larger than the sum of its proper divisors (8582281).

102087551 is an equidigital number, since it uses as much as digits as its factorization.

102087551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7718 (or 7699 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 102087551 is about 10103.8384290328. The cubic root of 102087551 is about 467.3665166487.

The spelling of 102087551 in words is "one hundred two million, eighty-seven thousand, five hundred fifty-one".