214525378 has 4 divisors (see below), whose sum is σ = 321788070. Its totient is φ = 107262688.

The previous prime is 214525351. The next prime is 214525411. The reversal of 214525378 is 873525412.

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

It can be written as a sum of positive squares in only one way, i.e., 214124689 + 400689 = 14633^2 + 633^2 .

It is a super-2 number, since 2×214525378² = 92042275612085768, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 53631343 + ... + 53631346.

Almost surely, 2^214525378 is an apocalyptic number.

214525378 is a deficient number, since it is larger than the sum of its proper divisors (107262692).

214525378 is a wasteful number, since it uses less digits than its factorization.

214525378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107262691.

The product of its digits is 67200, while the sum is 37.

The square root of 214525378 is about 14646.6848808869. The cubic root of 214525378 is about 598.6314902676.

The spelling of 214525378 in words is "two hundred fourteen million, five hundred twenty-five thousand, three hundred seventy-eight".