378155065 has 8 divisors (see below), whose sum is σ = 457802568. Its totient is φ = 299846400.

The previous prime is 378155033. The next prime is 378155083. The reversal of 378155065 is 560551873.

It can be written as a sum of positive squares in 4 ways, for example, as 1290496 + 376864569 = 1136^2 + 19413^2 .

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

It is not a de Polignac number, because 378155065 - 2⁵ = 378155033 is a prime.

It is a Duffinian number.

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, 334086 + ... + 335215.

It is an arithmetic number, because the mean of its divisors is an integer number (57225321).

Almost surely, 2^378155065 is an apocalyptic number.

It is an amenable number.

378155065 is a deficient number, since it is larger than the sum of its proper divisors (79647503).

378155065 is a wasteful number, since it uses less digits than its factorization.

378155065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669419.

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 378155065 is about 19446.2095278232. The cubic root of 378155065 is about 723.1415357652.

The spelling of 378155065 in words is "three hundred seventy-eight million, one hundred fifty-five thousand, sixty-five".