61247007 has 12 divisors (see below), whose sum is σ = 90525864. Its totient is φ = 39881520.

The previous prime is 61247003. The next prime is 61247009. The reversal of 61247007 is 70074216.

61247007 is a `hidden beast` number, since 612 + 47 + 0 + 0 + 7 = 666.

It is not a de Polignac number, because 61247007 - 2² = 61247003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61247003) 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, 78744 + ... + 79517.

It is an arithmetic number, because the mean of its divisors is an integer number (7543822).

Almost surely, 2^61247007 is an apocalyptic number.

61247007 is a deficient number, since it is larger than the sum of its proper divisors (29278857).

61247007 is a wasteful number, since it uses less digits than its factorization.

61247007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158310 (or 158307 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 61247007 is about 7826.0467031573. The cubic root of 61247007 is about 394.1803373651.

It can be divided in two parts, 6124 and 7007, that added together give a palindrome (13131).

The spelling of 61247007 in words is "sixty-one million, two hundred forty-seven thousand, seven".