65128354 has 4 divisors (see below), whose sum is σ = 97692534. Its totient is φ = 32564176.

The previous prime is 65128351. The next prime is 65128363. The reversal of 65128354 is 45382156.

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., 34492129 + 30636225 = 5873^2 + 5535^2 .

It is not an unprimeable number, because it can be changed into a prime (65128351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16282087 + ... + 16282090.

Almost surely, 2^65128354 is an apocalyptic number.

65128354 is a deficient number, since it is larger than the sum of its proper divisors (32564180).

65128354 is a wasteful number, since it uses less digits than its factorization.

65128354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32564179.

The product of its digits is 28800, while the sum is 34.

The square root of 65128354 is about 8070.2139996409. The cubic root of 65128354 is about 402.3370563264.

The spelling of 65128354 in words is "sixty-five million, one hundred twenty-eight thousand, three hundred fifty-four".