65143154 has 4 divisors (see below), whose sum is σ = 97714734. Its totient is φ = 32571576.

The previous prime is 65143129. The next prime is 65143157. The reversal of 65143154 is 45134156.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 53684929 + 11458225 = 7327^2 + 3385^2 .

It is not an unprimeable number, because it can be changed into a prime (65143157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16285787 + ... + 16285790.

Almost surely, 2^65143154 is an apocalyptic number.

65143154 is a deficient number, since it is larger than the sum of its proper divisors (32571580).

65143154 is a wasteful number, since it uses less digits than its factorization.

65143154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32571579.

The product of its digits is 7200, while the sum is 29.

The square root of 65143154 is about 8071.1308996943. The cubic root of 65143154 is about 402.3675301885.

The spelling of 65143154 in words is "sixty-five million, one hundred forty-three thousand, one hundred fifty-four".