4780161 has 8 divisors (see below), whose sum is σ = 7081760. Its totient is φ = 3186756.

The previous prime is 4780151. The next prime is 4780177. The reversal of 4780161 is 1610874.

It is a happy number.

It is not a de Polignac number, because 4780161 - 2⁷ = 4780033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 177043 = 4780161 / (4 + 7 + 8 + 0 + 1 + 6 + 1).

It is a Duffinian number.

4780161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4780151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88495 + ... + 88548.

It is an arithmetic number, because the mean of its divisors is an integer number (885220).

Almost surely, 2^4780161 is an apocalyptic number.

It is an amenable number.

4780161 is a deficient number, since it is larger than the sum of its proper divisors (2301599).

4780161 is a wasteful number, since it uses less digits than its factorization.

4780161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177052 (or 177046 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 4780161 is about 2186.3579304405. The cubic root of 4780161 is about 168.4538113002.

It can be divided in two parts, 47 and 80161, that added together give a palindrome (80208).

The spelling of 4780161 in words is "four million, seven hundred eighty thousand, one hundred sixty-one".