1645132367 has 2 divisors, whose sum is σ = 1645132368. Its totient is φ = 1645132366.

The previous prime is 1645132351. The next prime is 1645132373. The reversal of 1645132367 is 7632315461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1645132367 - 2⁴ = 1645132351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1645132367.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1645132067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 822566183 + 822566184.

It is an arithmetic number, because the mean of its divisors is an integer number (822566184).

Almost surely, 2^1645132367 is an apocalyptic number.

1645132367 is a deficient number, since it is larger than the sum of its proper divisors (1).

1645132367 is an equidigital number, since it uses as much as digits as its factorization.

1645132367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 1645132367 is about 40560.2313479595. The cubic root of 1645132367 is about 1180.5026028524.

The spelling of 1645132367 in words is "one billion, six hundred forty-five million, one hundred thirty-two thousand, three hundred sixty-seven".