61471146 has 48 divisors (see below), whose sum is σ = 136094112. Its totient is φ = 18495840.

The previous prime is 61471141. The next prime is 61471153. The reversal of 61471146 is 64117416.

It is not an unprimeable number, because it can be changed into a prime (61471141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164616 + ... + 164988.

It is an arithmetic number, because the mean of its divisors is an integer number (2835294).

Almost surely, 2^61471146 is an apocalyptic number.

61471146 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 61471146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68047056).

61471146 is an abundant number, since it is smaller than the sum of its proper divisors (74622966).

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

61471146 is a wasteful number, since it uses less digits than its factorization.

61471146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627 (or 616 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 61471146 is about 7840.3536910014. The cubic root of 61471146 is about 394.6605982690.

The spelling of 61471146 in words is "sixty-one million, four hundred seventy-one thousand, one hundred forty-six".