7537541161 has 4 divisors (see below), whose sum is σ = 7541410500. Its totient is φ = 7533671824.

The previous prime is 7537541153. The next prime is 7537541171. The reversal of 7537541161 is 1611457357.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5311494400 + 2226046761 = 72880^2 + 47181^2 .

It is a cyclic number.

It is not a de Polignac number, because 7537541161 - 2³ = 7537541153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7537541171) 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, 1931746 + ... + 1935643.

It is an arithmetic number, because the mean of its divisors is an integer number (1885352625).

Almost surely, 2^7537541161 is an apocalyptic number.

It is an amenable number.

7537541161 is a deficient number, since it is larger than the sum of its proper divisors (3869339).

7537541161 is a wasteful number, since it uses less digits than its factorization.

7537541161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3869338.

The product of its digits is 88200, while the sum is 40.

The square root of 7537541161 is about 86819.0138218582. The cubic root of 7537541161 is about 1960.6943570154.

The spelling of 7537541161 in words is "seven billion, five hundred thirty-seven million, five hundred forty-one thousand, one hundred sixty-one".