4215665131 has 2 divisors, whose sum is σ = 4215665132. Its totient is φ = 4215665130.

The previous prime is 4215665119. The next prime is 4215665149. The reversal of 4215665131 is 1315665124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4215665131 - 2²³ = 4207276523 is a prime.

It is a super-2 number, since 2×4215665131² = 35543664993458494322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4215665161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2107832565 + 2107832566.

It is an arithmetic number, because the mean of its divisors is an integer number (2107832566).

Almost surely, 2^4215665131 is an apocalyptic number.

4215665131 is a deficient number, since it is larger than the sum of its proper divisors (1).

4215665131 is an equidigital number, since it uses as much as digits as its factorization.

4215665131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 34.

The square root of 4215665131 is about 64928.1536084309. The cubic root of 4215665131 is about 1615.4320756337.

The spelling of 4215665131 in words is "four billion, two hundred fifteen million, six hundred sixty-five thousand, one hundred thirty-one".