7137009 has 12 divisors (see below), whose sum is σ = 11246352. Its totient is φ = 4325400.

The previous prime is 7137001. The next prime is 7137029. The reversal of 7137009 is 9007317.

It is not a de Polignac number, because 7137009 - 2³ = 7137001 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7137001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35947 + ... + 36144.

It is an arithmetic number, because the mean of its divisors is an integer number (937196).

Almost surely, 2^7137009 is an apocalyptic number.

It is an amenable number.

7137009 is a deficient number, since it is larger than the sum of its proper divisors (4109343).

7137009 is a wasteful number, since it uses less digits than its factorization.

7137009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72108 (or 72105 counting only the distinct ones).

The product of its (nonzero) digits is 1323, while the sum is 27.

The square root of 7137009 is about 2671.5181077432. The cubic root of 7137009 is about 192.5331050053.

The spelling of 7137009 in words is "seven million, one hundred thirty-seven thousand, nine".