2006915731 has 2 divisors, whose sum is σ = 2006915732. Its totient is φ = 2006915730.

The previous prime is 2006915719. The next prime is 2006915747. The reversal of 2006915731 is 1375196002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2006915731 - 2¹¹ = 2006913683 is a prime.

It is a super-2 number, since 2×2006915731² = 8055421502670528722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2006915431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003457865 + 1003457866.

It is an arithmetic number, because the mean of its divisors is an integer number (1003457866).

Almost surely, 2^2006915731 is an apocalyptic number.

2006915731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006915731 is an equidigital number, since it uses as much as digits as its factorization.

2006915731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 2006915731 is about 44798.6130477273. The cubic root of 2006915731 is about 1261.3715917615.

The spelling of 2006915731 in words is "two billion, six million, nine hundred fifteen thousand, seven hundred thirty-one".