1948595531 has 2 divisors, whose sum is σ = 1948595532. Its totient is φ = 1948595530.

The previous prime is 1948595449. The next prime is 1948595533. The reversal of 1948595531 is 1355958491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1948595531 - 2¹⁰ = 1948594507 is a prime.

It is a super-2 number, since 2×1948595531² = 7594049086866343922, which contains 22 as substring.

Together with 1948595533, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1948595531.

It is not a weakly prime, because it can be changed into another prime (1948595533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974297765 + 974297766.

It is an arithmetic number, because the mean of its divisors is an integer number (974297766).

Almost surely, 2^1948595531 is an apocalyptic number.

1948595531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948595531 is an equidigital number, since it uses as much as digits as its factorization.

1948595531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972000, while the sum is 50.

The square root of 1948595531 is about 44142.8989872663. The cubic root of 1948595531 is about 1249.0329653481.

The spelling of 1948595531 in words is "one billion, nine hundred forty-eight million, five hundred ninety-five thousand, five hundred thirty-one".