102611887 has 4 divisors (see below), whose sum is σ = 117270736. Its totient is φ = 87953040.

The previous prime is 102611833. The next prime is 102611897. The reversal of 102611887 is 788116201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 102611887 - 2⁷ = 102611759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102611897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7329414 + ... + 7329427.

It is an arithmetic number, because the mean of its divisors is an integer number (29317684).

Almost surely, 2^102611887 is an apocalyptic number.

102611887 is a deficient number, since it is larger than the sum of its proper divisors (14658849).

102611887 is an equidigital number, since it uses as much as digits as its factorization.

102611887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14658848.

The product of its (nonzero) digits is 5376, while the sum is 34.

The square root of 102611887 is about 10129.7525636118. The cubic root of 102611887 is about 468.1653040011.

The spelling of 102611887 in words is "one hundred two million, six hundred eleven thousand, eight hundred eighty-seven".