213607051 has 4 divisors (see below), whose sum is σ = 244122352. Its totient is φ = 183091752.

The previous prime is 213607039. The next prime is 213607067. The reversal of 213607051 is 150706312.

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

It is a cyclic number.

It is not a de Polignac number, because 213607051 - 2⁹ = 213606539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213607001) 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, 15257640 + ... + 15257653.

It is an arithmetic number, because the mean of its divisors is an integer number (61030588).

Almost surely, 2^213607051 is an apocalyptic number.

213607051 is a deficient number, since it is larger than the sum of its proper divisors (30515301).

213607051 is an equidigital number, since it uses as much as digits as its factorization.

213607051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30515300.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 213607051 is about 14615.3019469322. The cubic root of 213607051 is about 597.7760735848.

The spelling of 213607051 in words is "two hundred thirteen million, six hundred seven thousand, fifty-one".