145555245 has 32 divisors (see below), whose sum is σ = 282291840. Its totient is φ = 70571520.

The previous prime is 145555243. The next prime is 145555271. The reversal of 145555245 is 542555541.

145555245 is a `hidden beast` number, since 14 + 55 + 552 + 45 = 666.

It is not a de Polignac number, because 145555245 - 2¹ = 145555243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145555243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47524 + ... + 50493.

It is an arithmetic number, because the mean of its divisors is an integer number (8821620).

Almost surely, 2^145555245 is an apocalyptic number.

145555245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145555245 is a deficient number, since it is larger than the sum of its proper divisors (136736595).

145555245 is a wasteful number, since it uses less digits than its factorization.

145555245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98042 (or 98036 counting only the distinct ones).

The product of its digits is 100000, while the sum is 36.

The square root of 145555245 is about 12064.6278434107. The cubic root of 145555245 is about 526.0285143597.

The spelling of 145555245 in words is "one hundred forty-five million, five hundred fifty-five thousand, two hundred forty-five".