65142151 has 4 divisors (see below), whose sum is σ = 65285152. Its totient is φ = 64999152.

The previous prime is 65142139. The next prime is 65142169. The reversal of 65142151 is 15124156.

It is a happy number.

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 65142151 - 2⁹ = 65141639 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 (65142101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70815 + ... + 71728.

It is an arithmetic number, because the mean of its divisors is an integer number (16321288).

Almost surely, 2^65142151 is an apocalyptic number.

65142151 is a deficient number, since it is larger than the sum of its proper divisors (143001).

65142151 is a wasteful number, since it uses less digits than its factorization.

65142151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143000.

The product of its digits is 1200, while the sum is 25.

The square root of 65142151 is about 8071.0687644202. The cubic root of 65142151 is about 402.3654651125.

The spelling of 65142151 in words is "sixty-five million, one hundred forty-two thousand, one hundred fifty-one".