378153165 has 16 divisors (see below), whose sum is σ = 651587328. Its totient is φ = 186167616.

The previous prime is 378153157. The next prime is 378153173. The reversal of 378153165 is 561351873.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (378153157) and next prime (378153173).

It is not a de Polignac number, because 378153165 - 2³ = 378153157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 969429 + ... + 969818.

It is an arithmetic number, because the mean of its divisors is an integer number (40724208).

Almost surely, 2^378153165 is an apocalyptic number.

It is an amenable number.

378153165 is a deficient number, since it is larger than the sum of its proper divisors (273434163).

378153165 is a wasteful number, since it uses less digits than its factorization.

378153165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939268.

The product of its digits is 75600, while the sum is 39.

The square root of 378153165 is about 19446.1606750536. The cubic root of 378153165 is about 723.1403246472.

The spelling of 378153165 in words is "three hundred seventy-eight million, one hundred fifty-three thousand, one hundred sixty-five".