7213137 has 8 divisors (see below), whose sum is σ = 9822336. Its totient is φ = 4706352.

The previous prime is 7213133. The next prime is 7213139. The reversal of 7213137 is 7313127.

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

It is not a de Polignac number, because 7213137 - 2² = 7213133 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7213133) 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, 25438 + ... + 25719.

It is an arithmetic number, because the mean of its divisors is an integer number (1227792).

Almost surely, 2^7213137 is an apocalyptic number.

It is an amenable number.

7213137 is a deficient number, since it is larger than the sum of its proper divisors (2609199).

7213137 is a wasteful number, since it uses less digits than its factorization.

7213137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51207.

The product of its digits is 882, while the sum is 24.

The square root of 7213137 is about 2685.7283928201. The cubic root of 7213137 is about 193.2152466224.

The spelling of 7213137 in words is "seven million, two hundred thirteen thousand, one hundred thirty-seven".