7161214409 has 4 divisors (see below), whose sum is σ = 7296331716. Its totient is φ = 7026097104.

The previous prime is 7161214397. The next prime is 7161214433. The reversal of 7161214409 is 9044121617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9044121617 = 23 ⋅393222679.

It can be written as a sum of positive squares in 2 ways, for example, as 4933657600 + 2227556809 = 70240^2 + 47197^2 .

It is a cyclic number.

It is not a de Polignac number, because 7161214409 - 2⁴ = 7161214393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7161214609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67558574 + ... + 67558679.

It is an arithmetic number, because the mean of its divisors is an integer number (1824082929).

Almost surely, 2^7161214409 is an apocalyptic number.

It is an amenable number.

7161214409 is a deficient number, since it is larger than the sum of its proper divisors (135117307).

7161214409 is a wasteful number, since it uses less digits than its factorization.

7161214409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135117306.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 7161214409 is about 84623.9588355449. The cubic root of 7161214409 is about 1927.5052025993.

The spelling of 7161214409 in words is "seven billion, one hundred sixty-one million, two hundred fourteen thousand, four hundred nine".