65021461 has 4 divisors (see below), whose sum is σ = 66533632. Its totient is φ = 63509292.

The previous prime is 65021441. The next prime is 65021491. The reversal of 65021461 is 16412056.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65021461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65021441) 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 3 ways as a sum of consecutive naturals, for example, 756021 + ... + 756106.

It is an arithmetic number, because the mean of its divisors is an integer number (16633408).

Almost surely, 2^65021461 is an apocalyptic number.

It is an amenable number.

65021461 is a deficient number, since it is larger than the sum of its proper divisors (1512171).

65021461 is a wasteful number, since it uses less digits than its factorization.

65021461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512170.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 65021461 is about 8063.5885931761. The cubic root of 65021461 is about 402.1168216541.

The spelling of 65021461 in words is "sixty-five million, twenty-one thousand, four hundred sixty-one".