213550129 has 8 divisors (see below), whose sum is σ = 230168960. Its totient is φ = 196958736.

The previous prime is 213550111. The next prime is 213550157. The reversal of 213550129 is 921055312.

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

It is not a de Polignac number, because 213550129 - 2⁵ = 213550097 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 213550097 and 213550106.

It is not an unprimeable number, because it can be changed into a prime (213550109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11062 + ... + 23440.

It is an arithmetic number, because the mean of its divisors is an integer number (28771120).

Almost surely, 2^213550129 is an apocalyptic number.

It is an amenable number.

213550129 is a deficient number, since it is larger than the sum of its proper divisors (16618831).

213550129 is a wasteful number, since it uses less digits than its factorization.

213550129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13719.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 213550129 is about 14613.3544745893. The cubic root of 213550129 is about 597.7229704180.

The spelling of 213550129 in words is "two hundred thirteen million, five hundred fifty thousand, one hundred twenty-nine".