103405125 has 64 divisors (see below), whose sum is σ = 189296640. Its totient is φ = 49896000.

The previous prime is 103405109. The next prime is 103405129. The reversal of 103405125 is 521504301.

It is not a de Polignac number, because 103405125 - 2⁴ = 103405109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103405129) 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 63 ways as a sum of consecutive naturals, for example, 163560 + ... + 164190.

It is an arithmetic number, because the mean of its divisors is an integer number (2957760).

Almost surely, 2^103405125 is an apocalyptic number.

103405125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103405125 is a deficient number, since it is larger than the sum of its proper divisors (85891515).

103405125 is a wasteful number, since it uses less digits than its factorization.

103405125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 103405125 is about 10168.8310537642. The cubic root of 103405125 is about 469.3685877636.

Adding to 103405125 its reverse (521504301), we get a palindrome (624909426).

The spelling of 103405125 in words is "one hundred three million, four hundred five thousand, one hundred twenty-five".