1465421 has 2 divisors, whose sum is σ = 1465422. Its totient is φ = 1465420.

The previous prime is 1465393. The next prime is 1465423. The reversal of 1465421 is 1245641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1297321 + 168100 = 1139^2 + 410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1465421 is a prime.

It is a Sophie Germain prime.

Together with 1465423, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1465423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 732710 + 732711.

It is an arithmetic number, because the mean of its divisors is an integer number (732711).

2^1465421 is an apocalyptic number.

It is an amenable number.

1465421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1465421 is an equidigital number, since it uses as much as digits as its factorization.

1465421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 23.

The square root of 1465421 is about 1210.5457446953. The cubic root of 1465421 is about 113.5849532491.

The spelling of 1465421 in words is "one million, four hundred sixty-five thousand, four hundred twenty-one".