1612561103 has 16 divisors (see below), whose sum is σ = 1749707520. Its totient is φ = 1481167296.

The previous prime is 1612561091. The next prime is 1612561109. The reversal of 1612561103 is 3011652161.

It is a cyclic number.

It is not a de Polignac number, because 1612561103 - 2⁴ = 1612561087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612561109) 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 15 ways as a sum of consecutive naturals, for example, 104726 + ... + 119132.

It is an arithmetic number, because the mean of its divisors is an integer number (109356720).

Almost surely, 2^1612561103 is an apocalyptic number.

1612561103 is a deficient number, since it is larger than the sum of its proper divisors (137146417).

1612561103 is a wasteful number, since it uses less digits than its factorization.

1612561103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14606.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1612561103 is about 40156.7068246389. The cubic root of 1612561103 is about 1172.6598610612.

The spelling of 1612561103 in words is "one billion, six hundred twelve million, five hundred sixty-one thousand, one hundred three".