65201389 has 8 divisors (see below), whose sum is σ = 74221632. Its totient is φ = 56696640.

The previous prime is 65201377. The next prime is 65201399. The reversal of 65201389 is 98310256.

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

It is not a de Polignac number, because 65201389 - 2⁷ = 65201261 is a prime.

It is a super-2 number, since 2×65201389² = 8502442255058642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65201329) 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, 128604 + ... + 129109.

It is an arithmetic number, because the mean of its divisors is an integer number (9277704).

Almost surely, 2^65201389 is an apocalyptic number.

It is an amenable number.

65201389 is a deficient number, since it is larger than the sum of its proper divisors (9020243).

65201389 is a wasteful number, since it uses less digits than its factorization.

65201389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257747.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 65201389 is about 8074.7377047183. The cubic root of 65201389 is about 402.4873938672.

The spelling of 65201389 in words is "sixty-five million, two hundred one thousand, three hundred eighty-nine".