102000691 has 4 divisors (see below), whose sum is σ = 109846912. Its totient is φ = 94154472.

The previous prime is 102000631. The next prime is 102000713. The reversal of 102000691 is 196000201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 196000201 = 53 ⋅3698117.

It is a cyclic number.

It is not a de Polignac number, because 102000691 - 2¹⁷ = 101869619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102000631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3923091 + ... + 3923116.

It is an arithmetic number, because the mean of its divisors is an integer number (27461728).

Almost surely, 2^102000691 is an apocalyptic number.

102000691 is a deficient number, since it is larger than the sum of its proper divisors (7846221).

102000691 is an equidigital number, since it uses as much as digits as its factorization.

102000691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7846220.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 102000691 is about 10099.5391479017. The cubic root of 102000691 is about 467.2339279244.

Adding to 102000691 its reverse (196000201), we get a palindrome (298000892).

The spelling of 102000691 in words is "one hundred two million, six hundred ninety-one", and thus it is an aban number.