1465921 has 4 divisors (see below), whose sum is σ = 1516500. Its totient is φ = 1415344.

The previous prime is 1465901. The next prime is 1465931. The reversal of 1465921 is 1295641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1295641 = 41 ⋅31601.

It can be written as a sum of positive squares in 2 ways, for example, as 960400 + 505521 = 980^2 + 711^2 .

It is a cyclic number.

It is not a de Polignac number, because 1465921 - 2⁵ = 1465889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1465921.

It is not an unprimeable number, because it can be changed into a prime (1465901) 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, 25246 + ... + 25303.

It is an arithmetic number, because the mean of its divisors is an integer number (379125).

2^1465921 is an apocalyptic number.

It is an amenable number.

1465921 is a deficient number, since it is larger than the sum of its proper divisors (50579).

1465921 is an equidigital number, since it uses as much as digits as its factorization.

1465921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50578.

The product of its digits is 2160, while the sum is 28.

The square root of 1465921 is about 1210.7522455069. The cubic root of 1465921 is about 113.5978701330.

The spelling of 1465921 in words is "one million, four hundred sixty-five thousand, nine hundred twenty-one".