613781103 has 8 divisors (see below), whose sum is σ = 881326768. Its totient is φ = 377711424.

The previous prime is 613781101. The next prime is 613781159. The reversal of 613781103 is 301187316.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 613781103 - 2¹ = 613781101 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 (613781101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7868950 + ... + 7869027.

It is an arithmetic number, because the mean of its divisors is an integer number (110165846).

Almost surely, 2^613781103 is an apocalyptic number.

613781103 is a deficient number, since it is larger than the sum of its proper divisors (267545665).

613781103 is a wasteful number, since it uses less digits than its factorization.

613781103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15737993.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 613781103 is about 24774.6060109944. The cubic root of 613781103 is about 849.8413097063.

It can be divided in two parts, 61378 and 1103, that added together give a triangular number (62481 = T₃₅₃).

The spelling of 613781103 in words is "six hundred thirteen million, seven hundred eighty-one thousand, one hundred three".