214389157 has 4 divisors (see below), whose sum is σ = 216356140. Its totient is φ = 212422176.

The previous prime is 214389151. The next prime is 214389167. The reversal of 214389157 is 751983412.

214389157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 151757761 + 62631396 = 12319^2 + 7914^2 .

It is a cyclic number.

It is not a de Polignac number, because 214389157 - 2¹¹ = 214387109 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 (214389151) 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, 983328 + ... + 983545.

It is an arithmetic number, because the mean of its divisors is an integer number (54089035).

Almost surely, 2^214389157 is an apocalyptic number.

It is an amenable number.

214389157 is a deficient number, since it is larger than the sum of its proper divisors (1966983).

214389157 is a wasteful number, since it uses less digits than its factorization.

214389157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966982.

The product of its digits is 60480, while the sum is 40.

The square root of 214389157 is about 14642.0339092627. The cubic root of 214389157 is about 598.5047555391.

The spelling of 214389157 in words is "two hundred fourteen million, three hundred eighty-nine thousand, one hundred fifty-seven".