7138005 has 32 divisors (see below), whose sum is σ = 13165824. Its totient is φ = 3234816.

The previous prime is 7137989. The next prime is 7138009. The reversal of 7138005 is 5008317.

7138005 = T₃₆ + T₃₇ + ... + T₃₄₉.

It is not a de Polignac number, because 7138005 - 2⁴ = 7137989 is a prime.

It is a super-2 number, since 2×7138005² = 101902230760050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16269 + ... + 16701.

It is an arithmetic number, because the mean of its divisors is an integer number (411432).

Almost surely, 2^7138005 is an apocalyptic number.

It is an amenable number.

7138005 is a deficient number, since it is larger than the sum of its proper divisors (6027819).

7138005 is a wasteful number, since it uses less digits than its factorization.

7138005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 7138005 is about 2671.7045121046. The cubic root of 7138005 is about 192.5420608603.

The spelling of 7138005 in words is "seven million, one hundred thirty-eight thousand, five".