1945930061 has 2 divisors, whose sum is σ = 1945930062. Its totient is φ = 1945930060.

The previous prime is 1945930043. The next prime is 1945930067. The reversal of 1945930061 is 1600395491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1528340836 + 417589225 = 39094^2 + 20435^2 .

It is a cyclic number.

It is not a de Polignac number, because 1945930061 - 2¹⁴ = 1945913677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1945929997 and 1945930024.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1945930067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972965030 + 972965031.

It is an arithmetic number, because the mean of its divisors is an integer number (972965031).

Almost surely, 2^1945930061 is an apocalyptic number.

It is an amenable number.

1945930061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1945930061 is an equidigital number, since it uses as much as digits as its factorization.

1945930061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 1945930061 is about 44112.6972764078. The cubic root of 1945930061 is about 1248.4631910289.

The spelling of 1945930061 in words is "one billion, nine hundred forty-five million, nine hundred thirty thousand, sixty-one".