65081401 has 16 divisors (see below), whose sum is σ = 81383040. Its totient is φ = 50561280.

The previous prime is 65081383. The next prime is 65081407. The reversal of 65081401 is 10418056.

It is not a de Polignac number, because 65081401 - 2⁷ = 65081273 is a prime.

It is a super-2 number, since 2×65081401² = 8471177512245602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65081407) 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 in 15 ways as a sum of consecutive naturals, for example, 29505 + ... + 31633.

It is an arithmetic number, because the mean of its divisors is an integer number (5086440).

Almost surely, 2^65081401 is an apocalyptic number.

It is an amenable number.

65081401 is a deficient number, since it is larger than the sum of its proper divisors (16301639).

65081401 is a wasteful number, since it uses less digits than its factorization.

65081401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 65081401 is about 8067.3044444845. The cubic root of 65081401 is about 402.2403474321.

Adding to 65081401 its reverse (10418056), we get a palindrome (75499457).

The spelling of 65081401 in words is "sixty-five million, eighty-one thousand, four hundred one".