145340055 has 128 divisors (see below), whose sum is σ = 319334400. Its totient is φ = 61212672.

The previous prime is 145340051. The next prime is 145340071. The reversal of 145340055 is 550043541.

It is not a de Polignac number, because 145340055 - 2² = 145340051 is a prime.

It is a super-2 number, since 2×145340055² = 42247463174806050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145340051) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1333341 + ... + 1333449.

It is an arithmetic number, because the mean of its divisors is an integer number (2494800).

Almost surely, 2^145340055 is an apocalyptic number.

145340055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145340055 is an abundant number, since it is smaller than the sum of its proper divisors (173994345).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145340055 is a wasteful number, since it uses less digits than its factorization.

145340055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 145340055 is about 12055.7063252221. The cubic root of 145340055 is about 525.7691582983.

Adding to 145340055 its reverse (550043541), we get a palindrome (695383596).

The spelling of 145340055 in words is "one hundred forty-five million, three hundred forty thousand, fifty-five".