945397189123 has 2 divisors, whose sum is σ = 945397189124. Its totient is φ = 945397189122.

The previous prime is 945397189111. The next prime is 945397189127. The reversal of 945397189123 is 321981793549.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 945397189123 - 2²⁹ = 944860318211 is a prime.

It is not a weakly prime, because it can be changed into another prime (945397189127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472698594561 + 472698594562.

It is an arithmetic number, because the mean of its divisors is an integer number (472698594562).

Almost surely, 2^945397189123 is an apocalyptic number.

945397189123 is a deficient number, since it is larger than the sum of its proper divisors (1).

945397189123 is an equidigital number, since it uses as much as digits as its factorization.

945397189123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14696640, while the sum is 61.

The spelling of 945397189123 in words is "nine hundred forty-five billion, three hundred ninety-seven million, one hundred eighty-nine thousand, one hundred twenty-three".