2147516531 has 2 divisors, whose sum is σ = 2147516532. Its totient is φ = 2147516530.

The previous prime is 2147516471. The next prime is 2147516543. The reversal of 2147516531 is 1356157412.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2147516531 is a prime.

It is a super-2 number, since 2×2147516531² = 9223654501836547922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2147516491 and 2147516500.

It is not a weakly prime, because it can be changed into another prime (2147516131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073758265 + 1073758266.

It is an arithmetic number, because the mean of its divisors is an integer number (1073758266).

Almost surely, 2^2147516531 is an apocalyptic number.

2147516531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2147516531 is an equidigital number, since it uses as much as digits as its factorization.

2147516531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 35.

The square root of 2147516531 is about 46341.3048046772. The cubic root of 2147516531 is about 1290.1657401773.

The spelling of 2147516531 in words is "two billion, one hundred forty-seven million, five hundred sixteen thousand, five hundred thirty-one".