145054399999 has 4 divisors (see below), whose sum is σ = 145056295936. Its totient is φ = 145052504064.

The previous prime is 145054399981. The next prime is 145054400003. The reversal of 145054399999 is 999993450541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145054399999 - 2⁷ = 145054399871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145054399939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 828159 + ... + 987904.

It is an arithmetic number, because the mean of its divisors is an integer number (36264073984).

Almost surely, 2^145054399999 is an apocalyptic number.

145054399999 is a deficient number, since it is larger than the sum of its proper divisors (1895937).

145054399999 is an equidigital number, since it uses as much as digits as its factorization.

145054399999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895936.

The product of its (nonzero) digits is 70858800, while the sum is 67.

The spelling of 145054399999 in words is "one hundred forty-five billion, fifty-four million, three hundred ninety-nine thousand, nine hundred ninety-nine".