102240543 has 8 divisors (see below), whose sum is σ = 142247808. Its totient is φ = 65196824.

The previous prime is 102240529. The next prime is 102240547. The reversal of 102240543 is 345042201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102240543 - 2¹² = 102236447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102240547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740805 + ... + 740942.

It is an arithmetic number, because the mean of its divisors is an integer number (17780976).

Almost surely, 2^102240543 is an apocalyptic number.

102240543 is a deficient number, since it is larger than the sum of its proper divisors (40007265).

102240543 is a wasteful number, since it uses less digits than its factorization.

102240543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481773.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 102240543 is about 10111.4065787110. The cubic root of 102240543 is about 467.5998707583.

Adding to 102240543 its reverse (345042201), we get a palindrome (447282744).

The spelling of 102240543 in words is "one hundred two million, two hundred forty thousand, five hundred forty-three".