61947201 has 16 divisors (see below), whose sum is σ = 92059200. Its totient is φ = 36822528.

The previous prime is 61947191. The next prime is 61947209. The reversal of 61947201 is 10274916.

It is a happy number.

61947201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61947201 - 2⁵ = 61947169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61947209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30996 + ... + 32933.

It is an arithmetic number, because the mean of its divisors is an integer number (5753700).

Almost surely, 2^61947201 is an apocalyptic number.

It is an amenable number.

61947201 is a deficient number, since it is larger than the sum of its proper divisors (30111999).

61947201 is a wasteful number, since it uses less digits than its factorization.

61947201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63968.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 61947201 is about 7870.6544200594. The cubic root of 61947201 is about 395.6767781361.

The spelling of 61947201 in words is "sixty-one million, nine hundred forty-seven thousand, two hundred one".