378162231 has 4 divisors (see below), whose sum is σ = 504216312. Its totient is φ = 252108152.

The previous prime is 378162227. The next prime is 378162247. The reversal of 378162231 is 132261873.

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

It is a cyclic number.

It is not a de Polignac number, because 378162231 - 2² = 378162227 is a prime.

It is a super-2 number, since 2×378162231² = 286013345909794722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 378162192 and 378162201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378162221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63027036 + ... + 63027041.

It is an arithmetic number, because the mean of its divisors is an integer number (126054078).

Almost surely, 2^378162231 is an apocalyptic number.

378162231 is a deficient number, since it is larger than the sum of its proper divisors (126054081).

378162231 is a wasteful number, since it uses less digits than its factorization.

378162231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126054080.

The product of its digits is 12096, while the sum is 33.

The square root of 378162231 is about 19446.3937787961. The cubic root of 378162231 is about 723.1461035558.

The spelling of 378162231 in words is "three hundred seventy-eight million, one hundred sixty-two thousand, two hundred thirty-one".