213471137 has 16 divisors (see below), whose sum is σ = 246110400. Its totient is φ = 183119040.

The previous prime is 213471131. The next prime is 213471143. The reversal of 213471137 is 731174312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (213471131) and next prime (213471143).

It is a cyclic number.

It is not a de Polignac number, because 213471137 - 2¹² = 213467041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213471131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54323 + ... + 58119.

It is an arithmetic number, because the mean of its divisors is an integer number (15381900).

Almost surely, 2^213471137 is an apocalyptic number.

It is an amenable number.

213471137 is a deficient number, since it is larger than the sum of its proper divisors (32639263).

213471137 is a wasteful number, since it uses less digits than its factorization.

213471137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4096.

The product of its digits is 3528, while the sum is 29.

The square root of 213471137 is about 14610.6514912922. The cubic root of 213471137 is about 597.6492622666.

The spelling of 213471137 in words is "two hundred thirteen million, four hundred seventy-one thousand, one hundred thirty-seven".