378600149 has 4 divisors (see below), whose sum is σ = 400870764. Its totient is φ = 356329536.

The previous prime is 378600143. The next prime is 378600151. The reversal of 378600149 is 941006873.

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

It can be written as a sum of positive squares in 2 ways, for example, as 221473924 + 157126225 = 14882^2 + 12535^2 .

It is a cyclic number.

It is not a de Polignac number, because 378600149 - 2²⁴ = 361822933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378600143) 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, 11135282 + ... + 11135315.

It is an arithmetic number, because the mean of its divisors is an integer number (100217691).

Almost surely, 2^378600149 is an apocalyptic number.

It is an amenable number.

378600149 is a deficient number, since it is larger than the sum of its proper divisors (22270615).

378600149 is a wasteful number, since it uses less digits than its factorization.

378600149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22270614.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 378600149 is about 19457.6501407544. The cubic root of 378600149 is about 723.4251341837.

The spelling of 378600149 in words is "three hundred seventy-eight million, six hundred thousand, one hundred forty-nine".