7132815937 has 4 divisors (see below), whose sum is σ = 7681494100. Its totient is φ = 6584137776.

The previous prime is 7132815929. The next prime is 7132815979. The reversal of 7132815937 is 7395182317.

It is a Cunningham number, because it is equal to 84456²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7395182317 = 61 ⋅121232497.

It can be written as a sum of positive squares in 2 ways, for example, as 1055210256 + 6077605681 = 32484^2 + 77959^2 .

It is a cyclic number.

It is not a de Polignac number, because 7132815937 - 2³ = 7132815929 is a prime.

It is a super-2 number, since 2×7132815937² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7132815037) 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, 274339062 + ... + 274339087.

It is an arithmetic number, because the mean of its divisors is an integer number (1920373525).

Almost surely, 2^7132815937 is an apocalyptic number.

It is an amenable number.

7132815937 is a deficient number, since it is larger than the sum of its proper divisors (548678163).

7132815937 is a wasteful number, since it uses less digits than its factorization.

7132815937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548678162.

The product of its digits is 317520, while the sum is 46.

The square root of 7132815937 is about 84456.0000059202. Note that the first 5 decimals coincide. The cubic root of 7132815937 is about 1924.9539258776.

The spelling of 7132815937 in words is "seven billion, one hundred thirty-two million, eight hundred fifteen thousand, nine hundred thirty-seven".