102643701 has 4 divisors (see below), whose sum is σ = 136858272. Its totient is φ = 68429132.

The previous prime is 102643699. The next prime is 102643703. The reversal of 102643701 is 107346201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 107346201 = 3 ⋅35782067.

It is an interprime number because it is at equal distance from previous prime (102643699) and next prime (102643703).

It is a cyclic number.

It is not a de Polignac number, because 102643701 - 2¹ = 102643699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102643703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17107281 + ... + 17107286.

It is an arithmetic number, because the mean of its divisors is an integer number (34214568).

Almost surely, 2^102643701 is an apocalyptic number.

It is an amenable number.

102643701 is a deficient number, since it is larger than the sum of its proper divisors (34214571).

102643701 is an equidigital number, since it uses as much as digits as its factorization.

102643701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34214570.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 102643701 is about 10131.3227665493. The cubic root of 102643701 is about 468.2136826455.

Adding to 102643701 its reverse (107346201), we get a palindrome (209989902).

The spelling of 102643701 in words is "one hundred two million, six hundred forty-three thousand, seven hundred one".