1948015943 has 2 divisors, whose sum is σ = 1948015944. Its totient is φ = 1948015942.

The previous prime is 1948015859. The next prime is 1948015967. The reversal of 1948015943 is 3495108491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1948015943 - 2²⁰ = 1946967367 is a prime.

It is a super-2 number, since 2×1948015943² = 7589532228364358498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1948015894 and 1948015903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1948015343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974007971 + 974007972.

It is an arithmetic number, because the mean of its divisors is an integer number (974007972).

Almost surely, 2^1948015943 is an apocalyptic number.

1948015943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948015943 is an equidigital number, since it uses as much as digits as its factorization.

1948015943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 1948015943 is about 44136.3335926309. Note that the first 3 decimals coincide. The cubic root of 1948015943 is about 1248.9091160948.

The spelling of 1948015943 in words is "one billion, nine hundred forty-eight million, fifteen thousand, nine hundred forty-three".