213501914 has 16 divisors (see below), whose sum is σ = 335120328. Its totient is φ = 101904192.

The previous prime is 213501913. The next prime is 213501919. The reversal of 213501914 is 419105312.

It can be written as a sum of positive squares in 4 ways, for example, as 198330889 + 15171025 = 14083^2 + 3895^2 .

It is not an unprimeable number, because it can be changed into a prime (213501913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23297 + ... + 31140.

Almost surely, 2^213501914 is an apocalyptic number.

213501914 is a deficient number, since it is larger than the sum of its proper divisors (121618414).

213501914 is a wasteful number, since it uses less digits than its factorization.

213501914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54529.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 213501914 is about 14611.7046917873. The cubic root of 213501914 is about 597.6779827261.

The spelling of 213501914 in words is "two hundred thirteen million, five hundred one thousand, nine hundred fourteen".