1945950481 has 2 divisors, whose sum is σ = 1945950482. Its totient is φ = 1945950480.

The previous prime is 1945950467. The next prime is 1945950499. The reversal of 1945950481 is 1840595491.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1161446400 + 784504081 = 34080^2 + 28009^2 .

It is a cyclic number.

It is not a de Polignac number, because 1945950481 - 2⁹ = 1945949969 is a prime.

It is a super-2 number, since 2×1945950481² = 7573446549008262722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1945950401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972975240 + 972975241.

It is an arithmetic number, because the mean of its divisors is an integer number (972975241).

Almost surely, 2^1945950481 is an apocalyptic number.

It is an amenable number.

1945950481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1945950481 is an equidigital number, since it uses as much as digits as its factorization.

1945950481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 46.

The square root of 1945950481 is about 44112.9287284352. The cubic root of 1945950481 is about 1248.4675580116.

The spelling of 1945950481 in words is "one billion, nine hundred forty-five million, nine hundred fifty thousand, four hundred eighty-one".