61103047 has 4 divisors (see below), whose sum is σ = 61152840. Its totient is φ = 61053256.

The previous prime is 61103033. The next prime is 61103051. The reversal of 61103047 is 74030116.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61103047 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 (61103017) 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, 23008 + ... + 25525.

It is an arithmetic number, because the mean of its divisors is an integer number (15288210).

Almost surely, 2^61103047 is an apocalyptic number.

61103047 is a deficient number, since it is larger than the sum of its proper divisors (49793).

61103047 is a wasteful number, since it uses less digits than its factorization.

61103047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49792.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 61103047 is about 7816.8438004095. The cubic root of 61103047 is about 393.8712571199.

The spelling of 61103047 in words is "sixty-one million, one hundred three thousand, forty-seven".