61106247 has 12 divisors (see below), whose sum is σ = 88910640. Its totient is φ = 40439328.

The previous prime is 61106231. The next prime is 61106257. The reversal of 61106247 is 74260116.

61106247 is a `hidden beast` number, since 611 + 0 + 6 + 2 + 47 = 666.

It is not a de Polignac number, because 61106247 - 2⁴ = 61106231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61106247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61106257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23547 + ... + 26012.

It is an arithmetic number, because the mean of its divisors is an integer number (7409220).

Almost surely, 2^61106247 is an apocalyptic number.

61106247 is a deficient number, since it is larger than the sum of its proper divisors (27804393).

61106247 is a wasteful number, since it uses less digits than its factorization.

61106247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49702 (or 49699 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 61106247 is about 7817.0484839228. The cubic root of 61106247 is about 393.8781327510.

The spelling of 61106247 in words is "sixty-one million, one hundred six thousand, two hundred forty-seven".