61847161 has 4 divisors (see below), whose sum is σ = 64536192. Its totient is φ = 59158132.

The previous prime is 61847117. The next prime is 61847171. The reversal of 61847161 is 16174816.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61847161 - 2⁹ = 61846649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61847101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344481 + ... + 1344526.

It is an arithmetic number, because the mean of its divisors is an integer number (16134048).

Almost surely, 2^61847161 is an apocalyptic number.

It is an amenable number.

61847161 is a deficient number, since it is larger than the sum of its proper divisors (2689031).

61847161 is a wasteful number, since it uses less digits than its factorization.

61847161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689030.

The product of its digits is 8064, while the sum is 34.

The square root of 61847161 is about 7864.2965991880. The cubic root of 61847161 is about 395.4636674467.

The spelling of 61847161 in words is "sixty-one million, eight hundred forty-seven thousand, one hundred sixty-one".