65154971 has 8 divisors (see below), whose sum is σ = 78382080. Its totient is φ = 52907688.

The previous prime is 65154953. The next prime is 65154979. The reversal of 65154971 is 17945156.

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 65154971 - 2¹⁰ = 65153947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65154979) 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, 244811 + ... + 245076.

It is an arithmetic number, because the mean of its divisors is an integer number (9797760).

Almost surely, 2^65154971 is an apocalyptic number.

65154971 is a deficient number, since it is larger than the sum of its proper divisors (13227109).

65154971 is a wasteful number, since it uses less digits than its factorization.

65154971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489913.

The product of its digits is 37800, while the sum is 38.

The square root of 65154971 is about 8071.8629200452. The cubic root of 65154971 is about 402.3918586064.

The spelling of 65154971 in words is "sixty-five million, one hundred fifty-four thousand, nine hundred seventy-one".