102646043 has 4 divisors (see below), whose sum is σ = 103945440. Its totient is φ = 101346648.

The previous prime is 102646009. The next prime is 102646067. The reversal of 102646043 is 340646201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340646201 = 7 ⋅48663743.

It is a cyclic number.

It is not a de Polignac number, because 102646043 - 2¹⁸ = 102383899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102646003) 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, 649580 + ... + 649737.

It is an arithmetic number, because the mean of its divisors is an integer number (25986360).

Almost surely, 2^102646043 is an apocalyptic number.

102646043 is a deficient number, since it is larger than the sum of its proper divisors (1299397).

102646043 is an equidigital number, since it uses as much as digits as its factorization.

102646043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299396.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 102646043 is about 10131.4383480333. The cubic root of 102646043 is about 468.2172436632.

The spelling of 102646043 in words is "one hundred two million, six hundred forty-six thousand, forty-three".