65371145 has 12 divisors (see below), whose sum is σ = 91253124. Its totient is φ = 44825760.

The previous prime is 65371109. The next prime is 65371147. The reversal of 65371145 is 54117356.

It can be written as a sum of positive squares in 2 ways, for example, as 31125241 + 34245904 = 5579^2 + 5852^2 .

It is not a de Polignac number, because 65371145 - 2¹⁸ = 65109001 is a prime.

It is a super-2 number, since 2×65371145² = 8546773197222050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65371147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133166 + ... + 133655.

It is an arithmetic number, because the mean of its divisors is an integer number (7604427).

Almost surely, 2^65371145 is an apocalyptic number.

It is an amenable number.

65371145 is a deficient number, since it is larger than the sum of its proper divisors (25881979).

65371145 is a wasteful number, since it uses less digits than its factorization.

65371145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266840 (or 266833 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 65371145 is about 8085.2424206081. The cubic root of 65371145 is about 402.8363917482.

The spelling of 65371145 in words is "sixty-five million, three hundred seventy-one thousand, one hundred forty-five".