2355161 has 8 divisors (see below), whose sum is σ = 2466504. Its totient is φ = 2246400.

The previous prime is 2355151. The next prime is 2355169. The reversal of 2355161 is 1615532.

It can be written as a sum of positive squares in 4 ways, for example, as 295936 + 2059225 = 544^2 + 1435^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2355161 - 2⁶ = 2355097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2355169) 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, 1361 + ... + 2561.

It is an arithmetic number, because the mean of its divisors is an integer number (308313).

2^2355161 is an apocalyptic number.

It is an amenable number.

2355161 is a deficient number, since it is larger than the sum of its proper divisors (111343).

2355161 is a wasteful number, since it uses less digits than its factorization.

2355161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291.

The product of its digits is 900, while the sum is 23.

The square root of 2355161 is about 1534.6533810604. The cubic root of 2355161 is about 133.0475455165.

The spelling of 2355161 in words is "two million, three hundred fifty-five thousand, one hundred sixty-one".