65132378 has 4 divisors (see below), whose sum is σ = 97698570. Its totient is φ = 32566188.

The previous prime is 65132377. The next prime is 65132387. The reversal of 65132378 is 87323156.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 65011969 + 120409 = 8063^2 + 347^2 .

It is not an unprimeable number, because it can be changed into a prime (65132377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16283093 + ... + 16283096.

Almost surely, 2^65132378 is an apocalyptic number.

65132378 is a deficient number, since it is larger than the sum of its proper divisors (32566192).

65132378 is a wasteful number, since it uses less digits than its factorization.

65132378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32566191.

The product of its digits is 30240, while the sum is 35.

The square root of 65132378 is about 8070.4633076423. The cubic root of 65132378 is about 402.3453423793.

The spelling of 65132378 in words is "sixty-five million, one hundred thirty-two thousand, three hundred seventy-eight".