103900155 has 16 divisors (see below), whose sum is σ = 166367520. Its totient is φ = 55371008.

The previous prime is 103900129. The next prime is 103900157. The reversal of 103900155 is 551009301.

It is a cyclic number.

It is not a de Polignac number, because 103900155 - 2¹⁸ = 103638011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103900157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33511 + ... + 36479.

It is an arithmetic number, because the mean of its divisors is an integer number (10397970).

Almost surely, 2^103900155 is an apocalyptic number.

103900155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

103900155 is a deficient number, since it is larger than the sum of its proper divisors (62467365).

103900155 is a wasteful number, since it uses less digits than its factorization.

103900155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5310.

The product of its (nonzero) digits is 675, while the sum is 24.

The square root of 103900155 is about 10193.1425478112. The cubic root of 103900155 is about 470.1163964019.

Adding to 103900155 its reverse (551009301), we get a palindrome (654909456).

The spelling of 103900155 in words is "one hundred three million, nine hundred thousand, one hundred fifty-five".