102643707 has 4 divisors (see below), whose sum is σ = 136858280. Its totient is φ = 68429136.

The previous prime is 102643703. The next prime is 102643729. The reversal of 102643707 is 707346201.

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

It is not a de Polignac number, because 102643707 - 2² = 102643703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102643703) 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, 17107282 + ... + 17107287.

It is an arithmetic number, because the mean of its divisors is an integer number (34214570).

Almost surely, 2^102643707 is an apocalyptic number.

102643707 is a deficient number, since it is larger than the sum of its proper divisors (34214573).

102643707 is an equidigital number, since it uses as much as digits as its factorization.

102643707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34214572.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 102643707 is about 10131.3230626607. The cubic root of 102643707 is about 468.2136917685.

Adding to 102643707 its reverse (707346201), we get a palindrome (809989908).

The spelling of 102643707 in words is "one hundred two million, six hundred forty-three thousand, seven hundred seven".