1945375051 has 2 divisors, whose sum is σ = 1945375052. Its totient is φ = 1945375050.

The previous prime is 1945375027. The next prime is 1945375177. The reversal of 1945375051 is 1505735491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1945375051 - 2⁹ = 1945374539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1945374995 and 1945375013.

It is not a weakly prime, because it can be changed into another prime (1940375051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972687525 + 972687526.

It is an arithmetic number, because the mean of its divisors is an integer number (972687526).

Almost surely, 2^1945375051 is an apocalyptic number.

1945375051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1945375051 is an equidigital number, since it uses as much as digits as its factorization.

1945375051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94500, while the sum is 40.

The square root of 1945375051 is about 44106.4060086514. The cubic root of 1945375051 is about 1248.3444859332.

It can be divided in two parts, 1945 and 375051, that added together give a square (376996 = 614²).

The spelling of 1945375051 in words is "one billion, nine hundred forty-five million, three hundred seventy-five thousand, fifty-one".