102543419 has 16 divisors (see below), whose sum is σ = 115153920. Its totient is φ = 90504000.

The previous prime is 102543367. The next prime is 102543431. The reversal of 102543419 is 914345201.

It is a cyclic number.

It is not a de Polignac number, because 102543419 - 2¹² = 102539323 is a prime.

It is a super-2 number, since 2×102543419² = 21030305560419122, 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 = 102543391 and 102543400.

It is not an unprimeable number, because it can be changed into a prime (102543479) 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 15 ways as a sum of consecutive naturals, for example, 121802 + ... + 122640.

It is an arithmetic number, because the mean of its divisors is an integer number (7197120).

Almost surely, 2^102543419 is an apocalyptic number.

102543419 is a deficient number, since it is larger than the sum of its proper divisors (12610501).

102543419 is a wasteful number, since it uses less digits than its factorization.

102543419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 102543419 is about 10126.3724501916. The cubic root of 102543419 is about 468.0611527341.

It can be divided in two parts, 1025 and 43419, that added together give a palindrome (44444).

The spelling of 102543419 in words is "one hundred two million, five hundred forty-three thousand, four hundred nineteen".