319148470784531 has 2 divisors, whose sum is σ = 319148470784532. Its totient is φ = 319148470784530.

The previous prime is 319148470784527. The next prime is 319148470784621. The reversal of 319148470784531 is 135487074841913.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 319148470784531 - 2² = 319148470784527 is a prime.

It is a super-2 number, since 2×319148470784531² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (319148470784501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159574235392265 + 159574235392266.

It is an arithmetic number, because the mean of its divisors is an integer number (159574235392266).

Almost surely, 2^{319148470784531} is an apocalyptic number.

319148470784531 is a deficient number, since it is larger than the sum of its proper divisors (1).

319148470784531 is an equidigital number, since it uses as much as digits as its factorization.

319148470784531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81285120, while the sum is 65.

The spelling of 319148470784531 in words is "three hundred nineteen trillion, one hundred forty-eight billion, four hundred seventy million, seven hundred eighty-four thousand, five hundred thirty-one".