7136755121 has 8 divisors (see below), whose sum is σ = 7272999720. Its totient is φ = 7000569472.

The previous prime is 7136755103. The next prime is 7136755127. The reversal of 7136755121 is 1215576317.

It can be written as a sum of positive squares in 4 ways, for example, as 1525996096 + 5610759025 = 39064^2 + 74905^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7136755121 - 2²⁶ = 7069646257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7136755127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288581 + ... + 312333.

It is an arithmetic number, because the mean of its divisors is an integer number (909124965).

Almost surely, 2^7136755121 is an apocalyptic number.

It is an amenable number.

7136755121 is a deficient number, since it is larger than the sum of its proper divisors (136244599).

7136755121 is a wasteful number, since it uses less digits than its factorization.

7136755121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29475.

The product of its digits is 44100, while the sum is 38.

The square root of 7136755121 is about 84479.3177114967. The cubic root of 7136755121 is about 1925.3082203719.

The spelling of 7136755121 in words is "seven billion, one hundred thirty-six million, seven hundred fifty-five thousand, one hundred twenty-one".