1461633 has 4 divisors (see below), whose sum is σ = 1948848. Its totient is φ = 974420.

The previous prime is 1461631. The next prime is 1461637. The reversal of 1461633 is 3361641.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3361641 = 3 ⋅1120547.

It is a cyclic number.

It is not a de Polignac number, because 1461633 - 2¹ = 1461631 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1461631) 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, 243603 + ... + 243608.

It is an arithmetic number, because the mean of its divisors is an integer number (487212).

2^1461633 is an apocalyptic number.

It is an amenable number.

1461633 is a deficient number, since it is larger than the sum of its proper divisors (487215).

1461633 is an equidigital number, since it uses as much as digits as its factorization.

1461633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487214.

The product of its digits is 1296, while the sum is 24.

The square root of 1461633 is about 1208.9801487204. The cubic root of 1461633 is about 113.4869993583.

The spelling of 1461633 in words is "one million, four hundred sixty-one thousand, six hundred thirty-three".