145786155 has 16 divisors (see below), whose sum is σ = 233468160. Its totient is φ = 77682528.

The previous prime is 145786141. The next prime is 145786163. The reversal of 145786155 is 551687541.

It is not a de Polignac number, because 145786155 - 2⁴ = 145786139 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15816 + ... + 23274.

It is an arithmetic number, because the mean of its divisors is an integer number (14591760).

Almost surely, 2^145786155 is an apocalyptic number.

145786155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145786155 is a deficient number, since it is larger than the sum of its proper divisors (87682005).

145786155 is a wasteful number, since it uses less digits than its factorization.

145786155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8770.

The product of its digits is 168000, while the sum is 42.

The square root of 145786155 is about 12074.1937619039. The cubic root of 145786155 is about 526.3065326696.

The spelling of 145786155 in words is "one hundred forty-five million, seven hundred eighty-six thousand, one hundred fifty-five".