65377145 has 8 divisors (see below), whose sum is σ = 78600840. Its totient is φ = 52202880.

The previous prime is 65377099. The next prime is 65377153. The reversal of 65377145 is 54177356.

It can be written as a sum of positive squares in 4 ways, for example, as 19963024 + 45414121 = 4468^2 + 6739^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-65377145 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65377099 and 65377108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9380 + ... + 14789.

It is an arithmetic number, because the mean of its divisors is an integer number (9825105).

Almost surely, 2^65377145 is an apocalyptic number.

It is an amenable number.

65377145 is a deficient number, since it is larger than the sum of its proper divisors (13223695).

65377145 is a wasteful number, since it uses less digits than its factorization.

65377145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24715.

The product of its digits is 88200, while the sum is 38.

The square root of 65377145 is about 8085.6134584829. The cubic root of 65377145 is about 402.8487159645.

The spelling of 65377145 in words is "sixty-five million, three hundred seventy-seven thousand, one hundred forty-five".