214251538 has 8 divisors (see below), whose sum is σ = 326824560. Its totient is φ = 105310020.

The previous prime is 214251533. The next prime is 214251539. The reversal of 214251538 is 835152412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (214251533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907728 + ... + 907963.

It is an arithmetic number, because the mean of its divisors is an integer number (40853070).

Almost surely, 2^214251538 is an apocalyptic number.

214251538 is a deficient number, since it is larger than the sum of its proper divisors (112573022).

214251538 is a wasteful number, since it uses less digits than its factorization.

214251538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815752.

The product of its digits is 9600, while the sum is 31.

The square root of 214251538 is about 14637.3337052894. Note that the first 3 decimals coincide. The cubic root of 214251538 is about 598.3766656406.

The spelling of 214251538 in words is "two hundred fourteen million, two hundred fifty-one thousand, five hundred thirty-eight".