65242151 has 4 divisors (see below), whose sum is σ = 70260792. Its totient is φ = 60223512.

The previous prime is 65242127. The next prime is 65242159. The reversal of 65242151 is 15124256.

65242151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65242151 - 2¹⁸ = 64980007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65242151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65242159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2509301 + ... + 2509326.

It is an arithmetic number, because the mean of its divisors is an integer number (17565198).

Almost surely, 2^65242151 is an apocalyptic number.

65242151 is a deficient number, since it is larger than the sum of its proper divisors (5018641).

65242151 is a wasteful number, since it uses less digits than its factorization.

65242151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5018640.

The product of its digits is 2400, while the sum is 26.

The square root of 65242151 is about 8077.2613551872. The cubic root of 65242151 is about 402.5712508407.

The spelling of 65242151 in words is "sixty-five million, two hundred forty-two thousand, one hundred fifty-one".