2145462647 has 2 divisors, whose sum is σ = 2145462648. Its totient is φ = 2145462646.

The previous prime is 2145462643. The next prime is 2145462661. The reversal of 2145462647 is 7462645412.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2145462647 - 2² = 2145462643 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145462643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072731323 + 1072731324.

It is an arithmetic number, because the mean of its divisors is an integer number (1072731324).

Almost surely, 2^2145462647 is an apocalyptic number.

2145462647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145462647 is an equidigital number, since it uses as much as digits as its factorization.

2145462647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 41.

The square root of 2145462647 is about 46319.1391003762. The cubic root of 2145462647 is about 1289.7543043080.

The spelling of 2145462647 in words is "two billion, one hundred forty-five million, four hundred sixty-two thousand, six hundred forty-seven".