1464561 has 42 divisors (see below), whose sum is σ = 2616642. Its totient is φ = 816480.

The previous prime is 1464559. The next prime is 1464563. The reversal of 1464561 is 1654641.

1464561 is a `hidden beast` number, since 14 + 645 + 6 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1464559) and next prime (1464563).

It can be written as a sum of positive squares in only one way, i.e., 893025 + 571536 = 945^2 + 756^2 .

It is not a de Polignac number, because 1464561 - 2¹ = 1464559 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1464563) 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 in 41 ways as a sum of consecutive naturals, for example, 35701 + ... + 35741.

It is an arithmetic number, because the mean of its divisors is an integer number (62301).

2^1464561 is an apocalyptic number.

It is an amenable number.

1464561 is a deficient number, since it is larger than the sum of its proper divisors (1152081).

1464561 is an frugal number, since it uses more digits than its factorization.

1464561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73 (or 51 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1464561 is about 1210.1904808748. The cubic root of 1464561 is about 113.5627293342.

Subtracting from 1464561 its product of digits (2880), we obtain a square (1461681 = 1209²).

It can be divided in two parts, 14645 and 61, that added together give a triangular number (14706 = T₁₇₁).

The spelling of 1464561 in words is "one million, four hundred sixty-four thousand, five hundred sixty-one".