1810461 has 4 divisors (see below), whose sum is σ = 2413952. Its totient is φ = 1206972.

The previous prime is 1810451. The next prime is 1810469. The reversal of 1810461 is 1640181.

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 not a de Polignac number, because 1810461 - 2⁶ = 1810397 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

1810461 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1810469) 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, 301741 + ... + 301746.

It is an arithmetic number, because the mean of its divisors is an integer number (603488).

2^1810461 is an apocalyptic number.

It is an amenable number.

1810461 is a deficient number, since it is larger than the sum of its proper divisors (603491).

1810461 is an equidigital number, since it uses as much as digits as its factorization.

1810461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603490.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 1810461 is about 1345.5337231002. The cubic root of 1810461 is about 121.8792364076.

The spelling of 1810461 in words is "one million, eight hundred ten thousand, four hundred sixty-one".