103198065 has 32 divisors (see below), whose sum is σ = 170037120. Its totient is φ = 53415936.

The previous prime is 103198061. The next prime is 103198087. The reversal of 103198065 is 560891301.

103198065 = 1026² + 1027² + ... + 1115².

It is not a de Polignac number, because 103198065 - 2² = 103198061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103198061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124071 + ... + 124899.

It is an arithmetic number, because the mean of its divisors is an integer number (5313660).

Almost surely, 2^103198065 is an apocalyptic number.

103198065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103198065 is a deficient number, since it is larger than the sum of its proper divisors (66839055).

103198065 is a wasteful number, since it uses less digits than its factorization.

103198065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 103198065 is about 10158.6448407256. The cubic root of 103198065 is about 469.0550881444.

The spelling of 103198065 in words is "one hundred three million, one hundred ninety-eight thousand, sixty-five".