4961161 has 4 divisors (see below), whose sum is σ = 5253012. Its totient is φ = 4669312.

The previous prime is 4961141. The next prime is 4961183. The reversal of 4961161 is 1611694.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4177936 + 783225 = 2044^2 + 885^2 .

It is a cyclic number.

It is not a de Polignac number, because 4961161 - 2⁵ = 4961129 is a prime.

It is a super-2 number, since 2×4961161² = 49226236935842, which contains 22 as substring.

It is a Duffinian number.

4961161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4961141) 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, 145900 + ... + 145933.

It is an arithmetic number, because the mean of its divisors is an integer number (1313253).

Almost surely, 2^4961161 is an apocalyptic number.

It is an amenable number.

4961161 is a deficient number, since it is larger than the sum of its proper divisors (291851).

4961161 is a wasteful number, since it uses less digits than its factorization.

4961161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291850.

The product of its digits is 1296, while the sum is 28.

The square root of 4961161 is about 2227.3663820755. The cubic root of 4961161 is about 170.5536849031.

The spelling of 4961161 in words is "four million, nine hundred sixty-one thousand, one hundred sixty-one".