65381901 has 16 divisors (see below), whose sum is σ = 95074560. Its totient is φ = 39723840.

The previous prime is 65381879. The next prime is 65381909. The reversal of 65381901 is 10918356.

It is not a de Polignac number, because 65381901 - 2⁶ = 65381837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65381909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7530 + ... + 13691.

It is an arithmetic number, because the mean of its divisors is an integer number (5942160).

Almost surely, 2^65381901 is an apocalyptic number.

It is an amenable number.

65381901 is a deficient number, since it is larger than the sum of its proper divisors (29692659).

65381901 is a wasteful number, since it uses less digits than its factorization.

65381901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21316.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 65381901 is about 8085.9075557417. The cubic root of 65381901 is about 402.8584844243.

The spelling of 65381901 in words is "sixty-five million, three hundred eighty-one thousand, nine hundred one".