145000055 has 8 divisors (see below), whose sum is σ = 184235472. Its totient is φ = 109176448.

The previous prime is 145000049. The next prime is 145000057. The reversal of 145000055 is 550000541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145000055 - 2⁶ = 144999991 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 (145000057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 852857 + ... + 853026.

It is an arithmetic number, because the mean of its divisors is an integer number (23029434).

Almost surely, 2^145000055 is an apocalyptic number.

145000055 is a deficient number, since it is larger than the sum of its proper divisors (39235417).

145000055 is a wasteful number, since it uses less digits than its factorization.

145000055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705905.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 145000055 is about 12041.5968625428. The cubic root of 145000055 is about 525.3588536740.

Adding to 145000055 its reverse (550000541), we get a palindrome (695000596).

The spelling of 145000055 in words is "one hundred forty-five million, fifty-five", and thus it is an aban number.