145156305 has 32 divisors (see below), whose sum is σ = 269180928. Its totient is φ = 65419200.

The previous prime is 145156283. The next prime is 145156309. The reversal of 145156305 is 503651541.

It is not a de Polignac number, because 145156305 - 2⁵ = 145156273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145156309) 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 31 ways as a sum of consecutive naturals, for example, 2281 + ... + 17190.

It is an arithmetic number, because the mean of its divisors is an integer number (8411904).

Almost surely, 2^145156305 is an apocalyptic number.

145156305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145156305 is a deficient number, since it is larger than the sum of its proper divisors (124024623).

145156305 is a wasteful number, since it uses less digits than its factorization.

145156305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19557.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 145156305 is about 12048.0830425425. The cubic root of 145156305 is about 525.5474923453.

The spelling of 145156305 in words is "one hundred forty-five million, one hundred fifty-six thousand, three hundred five".