1461623 has 2 divisors, whose sum is σ = 1461624. Its totient is φ = 1461622.

The previous prime is 1461601. The next prime is 1461631. The reversal of 1461623 is 3261641.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3261641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1461623 - 2⁸ = 1461367 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1461683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730811 + 730812.

It is an arithmetic number, because the mean of its divisors is an integer number (730812).

2^1461623 is an apocalyptic number.

1461623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461623 is an equidigital number, since it uses as much as digits as its factorization.

1461623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 1461623 is about 1208.9760129961. The cubic root of 1461623 is about 113.4867405445.

The spelling of 1461623 in words is "one million, four hundred sixty-one thousand, six hundred twenty-three".