65121051 has 8 divisors (see below), whose sum is σ = 86892624. Its totient is φ = 43381760.

The previous prime is 65121041. The next prime is 65121071. The reversal of 65121051 is 15012156.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65121051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65121031) 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, 2886 + ... + 11771.

It is an arithmetic number, because the mean of its divisors is an integer number (10861578).

Almost surely, 2^65121051 is an apocalyptic number.

65121051 is a deficient number, since it is larger than the sum of its proper divisors (21771573).

65121051 is a wasteful number, since it uses less digits than its factorization.

65121051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16141.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 65121051 is about 8069.7615206399. The cubic root of 65121051 is about 402.3220174215.

The spelling of 65121051 in words is "sixty-five million, one hundred twenty-one thousand, fifty-one".