103545431 has 4 divisors (see below), whose sum is σ = 112958664. Its totient is φ = 94132200.

The previous prime is 103545389. The next prime is 103545437. The reversal of 103545431 is 134545301.

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 103545431 - 2¹⁰ = 103544407 is a prime.

It is a super-3 number, since 3×103545431³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 103545431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103545437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4706600 + ... + 4706621.

It is an arithmetic number, because the mean of its divisors is an integer number (28239666).

Almost surely, 2^103545431 is an apocalyptic number.

103545431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103545431 is a deficient number, since it is larger than the sum of its proper divisors (9413233).

103545431 is an equidigital number, since it uses as much as digits as its factorization.

103545431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9413232.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 103545431 is about 10175.7275415569. The cubic root of 103545431 is about 469.5807805543.

The spelling of 103545431 in words is "one hundred three million, five hundred forty-five thousand, four hundred thirty-one".