61906103 has 4 divisors (see below), whose sum is σ = 70749840. Its totient is φ = 53062368.

The previous prime is 61906099. The next prime is 61906121. The reversal of 61906103 is 30160916.

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 61906103 - 2² = 61906099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61906183) 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, 4421858 + ... + 4421871.

It is an arithmetic number, because the mean of its divisors is an integer number (17687460).

Almost surely, 2^61906103 is an apocalyptic number.

61906103 is a deficient number, since it is larger than the sum of its proper divisors (8843737).

61906103 is an equidigital number, since it uses as much as digits as its factorization.

61906103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8843736.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 61906103 is about 7868.0431493479. The cubic root of 61906103 is about 395.5892567122.

The spelling of 61906103 in words is "sixty-one million, nine hundred six thousand, one hundred three".