154023185122993 has 2 divisors, whose sum is σ = 154023185122994. Its totient is φ = 154023185122992.

The previous prime is 154023185122957. The next prime is 154023185123011. The reversal of 154023185122993 is 399221581320451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80313267762289 + 73709917360704 = 8961767^2 + 8585448^2 .

It is a cyclic number.

It is not a de Polignac number, because 154023185122993 - 2¹³ = 154023185114801 is a prime.

It is not a weakly prime, because it can be changed into another prime (154023185122913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77011592561496 + 77011592561497.

It is an arithmetic number, because the mean of its divisors is an integer number (77011592561497).

Almost surely, 2^{154023185122993} is an apocalyptic number.

It is an amenable number.

154023185122993 is a deficient number, since it is larger than the sum of its proper divisors (1).

154023185122993 is an equidigital number, since it uses as much as digits as its factorization.

154023185122993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 154023185122993 in words is "one hundred fifty-four trillion, twenty-three billion, one hundred eighty-five million, one hundred twenty-two thousand, nine hundred ninety-three".