7136121 has 16 divisors (see below), whose sum is σ = 9732800. Its totient is φ = 4650048.

The previous prime is 7136111. The next prime is 7136123. The reversal of 7136121 is 1216317.

7136121 = 154² + 155² + ... + 292².

It is not a de Polignac number, because 7136121 - 2⁵ = 7136089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7136123) 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, 45375 + ... + 45531.

It is an arithmetic number, because the mean of its divisors is an integer number (608300).

Almost surely, 2^7136121 is an apocalyptic number.

It is an amenable number.

7136121 is a deficient number, since it is larger than the sum of its proper divisors (2596679).

7136121 is a wasteful number, since it uses less digits than its factorization.

7136121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408.

The product of its digits is 252, while the sum is 21.

The square root of 7136121 is about 2671.3519049350. The cubic root of 7136121 is about 192.5251195645.

The spelling of 7136121 in words is "seven million, one hundred thirty-six thousand, one hundred twenty-one".