1945502051 has 2 divisors, whose sum is σ = 1945502052. Its totient is φ = 1945502050.

The previous prime is 1945502023. The next prime is 1945502059. The reversal of 1945502051 is 1502055491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1945502051 - 2²² = 1941307747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1945501999 and 1945502017.

It is not a weakly prime, because it can be changed into another prime (1945502059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972751025 + 972751026.

It is an arithmetic number, because the mean of its divisors is an integer number (972751026).

Almost surely, 2^1945502051 is an apocalyptic number.

1945502051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1945502051 is an equidigital number, since it uses as much as digits as its factorization.

1945502051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 1945502051 is about 44107.8456853200. The cubic root of 1945502051 is about 1248.3716505836.

The spelling of 1945502051 in words is "one billion, nine hundred forty-five million, five hundred two thousand, fifty-one".