65121463 has 8 divisors (see below), whose sum is σ = 71145216. Its totient is φ = 59115000.

The previous prime is 65121457. The next prime is 65121473. The reversal of 65121463 is 36412156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65121463 - 2⁵ = 65121431 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 (65121473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4320 + ... + 12202.

It is an arithmetic number, because the mean of its divisors is an integer number (8893152).

Almost surely, 2^65121463 is an apocalyptic number.

65121463 is a deficient number, since it is larger than the sum of its proper divisors (6023753).

65121463 is a wasteful number, since it uses less digits than its factorization.

65121463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8645.

The product of its digits is 4320, while the sum is 28.

The square root of 65121463 is about 8069.7870479958. The cubic root of 65121463 is about 402.3228658739.

The spelling of 65121463 in words is "sixty-five million, one hundred twenty-one thousand, four hundred sixty-three".