98540123 has 4 divisors (see below), whose sum is σ = 107498328. Its totient is φ = 89581920.

The previous prime is 98540111. The next prime is 98540129. The reversal of 98540123 is 32104589.

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

It is a cyclic number.

It is not a de Polignac number, because 98540123 - 2¹² = 98536027 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 98540123.

It is not an unprimeable number, because it can be changed into a prime (98540129) 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, 4479086 + ... + 4479107.

It is an arithmetic number, because the mean of its divisors is an integer number (26874582).

Almost surely, 2^98540123 is an apocalyptic number.

98540123 is a deficient number, since it is larger than the sum of its proper divisors (8958205).

98540123 is a wasteful number, since it uses less digits than its factorization.

98540123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8958204.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 98540123 is about 9926.7377823734. The cubic root of 98540123 is about 461.8890855849.

The spelling of 98540123 in words is "ninety-eight million, five hundred forty thousand, one hundred twenty-three".