61380103 has 4 divisors (see below), whose sum is σ = 61792200. Its totient is φ = 60968008.

The previous prime is 61380101. The next prime is 61380133. The reversal of 61380103 is 30108316.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61380103 - 2¹ = 61380101 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 (61380101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205825 + ... + 206122.

It is an arithmetic number, because the mean of its divisors is an integer number (15448050).

Almost surely, 2^61380103 is an apocalyptic number.

61380103 is a deficient number, since it is larger than the sum of its proper divisors (412097).

61380103 is a wasteful number, since it uses less digits than its factorization.

61380103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412096.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 61380103 is about 7834.5454877740. The cubic root of 61380103 is about 394.4656621588.

Adding to 61380103 its reverse (30108316), we get a palindrome (91488419).

The spelling of 61380103 in words is "sixty-one million, three hundred eighty thousand, one hundred three".