103899523 has 16 divisors (see below), whose sum is σ = 128261056. Its totient is φ = 81959040.

The previous prime is 103899517. The next prime is 103899527. The reversal of 103899523 is 325998301.

It is a cyclic number.

It is not a de Polignac number, because 103899523 - 2¹³ = 103891331 is a prime.

It is a super-2 number, since 2×103899523² = 21590221759255058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103899527) 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 15 ways as a sum of consecutive naturals, for example, 32413 + ... + 35473.

It is an arithmetic number, because the mean of its divisors is an integer number (8016316).

Almost surely, 2^103899523 is an apocalyptic number.

103899523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

103899523 is a deficient number, since it is larger than the sum of its proper divisors (24361533).

103899523 is a wasteful number, since it uses less digits than its factorization.

103899523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 103899523 is about 10193.1115465298. Note that the first 3 decimals coincide. The cubic root of 103899523 is about 470.1154431978.

The spelling of 103899523 in words is "one hundred three million, eight hundred ninety-nine thousand, five hundred twenty-three".