102341621 has 4 divisors (see below), whose sum is σ = 102605100. Its totient is φ = 102078144.

The previous prime is 102341611. The next prime is 102341623. The reversal of 102341621 is 126143201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 126143201 = 23 ⋅5484487.

It can be written as a sum of positive squares in 2 ways, for example, as 47803396 + 54538225 = 6914^2 + 7385^2 .

It is a cyclic number.

It is not a de Polignac number, because 102341621 - 2⁶ = 102341557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102341593 and 102341602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102341623) 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, 131156 + ... + 131933.

It is an arithmetic number, because the mean of its divisors is an integer number (25651275).

Almost surely, 2^102341621 is an apocalyptic number.

It is an amenable number.

102341621 is a deficient number, since it is larger than the sum of its proper divisors (263479).

102341621 is an equidigital number, since it uses as much as digits as its factorization.

102341621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263478.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 102341621 is about 10116.4035605545. The cubic root of 102341621 is about 467.7539143218.

Adding to 102341621 its reverse (126143201), we get a palindrome (228484822).

The spelling of 102341621 in words is "one hundred two million, three hundred forty-one thousand, six hundred twenty-one".