378000155 has 32 divisors (see below), whose sum is σ = 516264000. Its totient is φ = 263388672.

The previous prime is 378000113. The next prime is 378000157. The reversal of 378000155 is 551000873.

It is a cyclic number.

It is not a de Polignac number, because 378000155 - 2⁸ = 377999899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378000157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 430577 + ... + 431453.

It is an arithmetic number, because the mean of its divisors is an integer number (16133250).

Almost surely, 2^378000155 is an apocalyptic number.

378000155 is a deficient number, since it is larger than the sum of its proper divisors (138263845).

378000155 is a wasteful number, since it uses less digits than its factorization.

378000155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 378000155 is about 19442.2260813930. The cubic root of 378000155 is about 723.0427780811.

The spelling of 378000155 in words is "three hundred seventy-eight million, one hundred fifty-five", and thus it is an aban number.