1642995059 has 2 divisors, whose sum is σ = 1642995060. Its totient is φ = 1642995058.

The previous prime is 1642995049. The next prime is 1642995077. The reversal of 1642995059 is 9505992461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1642995059 - 2¹² = 1642990963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1642994998 and 1642995016.

It is not a weakly prime, because it can be changed into another prime (1642995049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 821497529 + 821497530.

It is an arithmetic number, because the mean of its divisors is an integer number (821497530).

Almost surely, 2^1642995059 is an apocalyptic number.

1642995059 is a deficient number, since it is larger than the sum of its proper divisors (1).

1642995059 is an equidigital number, since it uses as much as digits as its factorization.

1642995059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 874800, while the sum is 50.

The square root of 1642995059 is about 40533.8754500480. The cubic root of 1642995059 is about 1179.9911564500.

The spelling of 1642995059 in words is "one billion, six hundred forty-two million, nine hundred ninety-five thousand, fifty-nine".