61147206 has 24 divisors (see below), whose sum is σ = 139459320. Its totient is φ = 19309536.

The previous prime is 61147201. The next prime is 61147211. The reversal of 61147206 is 60274116.

61147206 is a `hidden beast` number, since 611 + 47 + 2 + 0 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (61147201) and next prime (61147211).

It is a self number, because there is not a number n which added to its sum of digits gives 61147206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61147201) 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, 89055 + ... + 89738.

It is an arithmetic number, because the mean of its divisors is an integer number (5810805).

Almost surely, 2^61147206 is an apocalyptic number.

61147206 is an abundant number, since it is smaller than the sum of its proper divisors (78312114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61147206 is a wasteful number, since it uses less digits than its factorization.

61147206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178820 (or 178817 counting only the distinct ones).

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

The square root of 61147206 is about 7819.6678957613. The cubic root of 61147206 is about 393.9661174879.

The spelling of 61147206 in words is "sixty-one million, one hundred forty-seven thousand, two hundred six".