145303155 has 12 divisors (see below), whose sum is σ = 251858880. Its totient is φ = 77494992.

The previous prime is 145303153. The next prime is 145303177. The reversal of 145303155 is 551303541.

It is not a de Polignac number, because 145303155 - 2¹ = 145303153 is a prime.

It is a super-2 number, since 2×145303155² = 42226013705908050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145303153) 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 11 ways as a sum of consecutive naturals, for example, 1614435 + ... + 1614524.

It is an arithmetic number, because the mean of its divisors is an integer number (20988240).

Almost surely, 2^145303155 is an apocalyptic number.

145303155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145303155 is a deficient number, since it is larger than the sum of its proper divisors (106555725).

145303155 is a wasteful number, since it uses less digits than its factorization.

145303155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228970 (or 3228967 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 145303155 is about 12054.1758324657. The cubic root of 145303155 is about 525.7246591544.

Adding to 145303155 its reverse (551303541), we get a palindrome (696606696).

The spelling of 145303155 in words is "one hundred forty-five million, three hundred three thousand, one hundred fifty-five".