2481161 has 4 divisors (see below), whose sum is σ = 2484372. Its totient is φ = 2477952.

The previous prime is 2481139. The next prime is 2481169. The reversal of 2481161 is 1611842.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2371600 + 109561 = 1540^2 + 331^2 .

It is a cyclic number.

It is not a de Polignac number, because 2481161 - 2⁶ = 2481097 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2481169) 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, 341 + ... + 2253.

It is an arithmetic number, because the mean of its divisors is an integer number (621093).

2^2481161 is an apocalyptic number.

It is an amenable number.

2481161 is a deficient number, since it is larger than the sum of its proper divisors (3211).

2481161 is a wasteful number, since it uses less digits than its factorization.

2481161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210.

The product of its digits is 384, while the sum is 23.

The square root of 2481161 is about 1575.1701495394. The cubic root of 2481161 is about 135.3791081428.

The spelling of 2481161 in words is "two million, four hundred eighty-one thousand, one hundred sixty-one".