102345641 has 4 divisors (see below), whose sum is σ = 103339392. Its totient is φ = 101351892.

The previous prime is 102345599. The next prime is 102345671. The reversal of 102345641 is 146543201.

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: 146543201 = 7 ⋅20934743.

It is a cyclic number.

It is not a de Polignac number, because 102345641 - 2²⁶ = 35236777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102345641.

It is not an unprimeable number, because it can be changed into a prime (102345671) 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, 496721 + ... + 496926.

It is an arithmetic number, because the mean of its divisors is an integer number (25834848).

Almost surely, 2^102345641 is an apocalyptic number.

It is an amenable number.

102345641 is a deficient number, since it is larger than the sum of its proper divisors (993751).

102345641 is an equidigital number, since it uses as much as digits as its factorization.

102345641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993750.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 102345641 is about 10116.6022458136. The cubic root of 102345641 is about 467.7600387317.

Adding to 102345641 its reverse (146543201), we get a palindrome (248888842).

It can be divided in two parts, 1023 and 45641, that added together give a palindrome (46664).

The spelling of 102345641 in words is "one hundred two million, three hundred forty-five thousand, six hundred forty-one".