102441531 has 4 divisors (see below), whose sum is σ = 136588712. Its totient is φ = 68294352.

The previous prime is 102441511. The next prime is 102441533. The reversal of 102441531 is 135144201.

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

It is not a de Polignac number, because 102441531 - 2¹¹ = 102439483 is a prime.

It is a super-2 number, since 2×102441531² = 20988534547247922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102441498 and 102441507.

It is not an unprimeable number, because it can be changed into a prime (102441533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17073586 + ... + 17073591.

It is an arithmetic number, because the mean of its divisors is an integer number (34147178).

Almost surely, 2^102441531 is an apocalyptic number.

102441531 is a deficient number, since it is larger than the sum of its proper divisors (34147181).

102441531 is an equidigital number, since it uses as much as digits as its factorization.

102441531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34147180.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 102441531 is about 10121.3403756617. The cubic root of 102441531 is about 467.9060782010.

Adding to 102441531 its reverse (135144201), we get a palindrome (237585732).

The spelling of 102441531 in words is "one hundred two million, four hundred forty-one thousand, five hundred thirty-one".